# LeadCognition

> LeadCognition is a self-serve GitHub signal intelligence platform for DevTool companies. It monitors GitHub repository activity to identify developers evaluating technology, enriches profiles with LinkedIn and verified email, and generates AI-powered outreach playbooks. Plans start at $0/month with no credit card required.

## Pages

- [LeadCognition — GitHub Signal Intelligence Platform](https://leadcognition.io/): Turn GitHub activity into qualified leads. Monitor stars, forks, and commits to find developers before they fill out a form. Free tier included.
- [LeadCognition Alternatives — Koala, Common Room & More](https://leadcognition.io/alternatives): After Koala shut down in 2025, LeadCognition fills the gap. The only self-serve GitHub signal intelligence platform with transparent pricing from $99/mo.
- [Koala Alternative — Self-Serve GitHub Signal Intelligence](https://leadcognition.io/koala-alternative): Koala shut down in September 2025. LeadCognition is the self-serve alternative — GitHub signal intelligence, transparent pricing, free tier. Start in minutes.
- [Best Clearbit Alternative in 2026 — Developer Signal Intelligence](https://leadcognition.io/clearbit-alternative): Clearbit was acquired by HubSpot. LeadCognition is the self-serve alternative for developer-focused teams — GitHub signal intelligence, contact enrichment, and AI outreach. Free tier, no sales call.
- [Best Apollo Alternative in 2026 for Developer-Led Sales](https://leadcognition.io/apollo-alternative): Apollo.io is a general B2B sales tool. LeadCognition is the developer-focused alternative — GitHub signal intelligence finds warm leads before they hit your website. Self-serve, $0-$799/mo.
- [Best RocketReach Alternative in 2026 for Developer-Led Sales](https://leadcognition.io/rocketreach-alternative): RocketReach has 700M profiles but zero GitHub signals. LeadCognition finds developers evaluating your category through real-time GitHub activity. Self-serve, free tier.
- [Best Lusha Alternative in 2026 for Developer-Led Sales](https://leadcognition.io/lusha-alternative): Lusha is great for quick B2B contact lookups — but for DevTool teams, contact data alone isn
- [Best Hunter.io Alternative in 2026 — GitHub Signal Intelligence + Email](https://leadcognition.io/hunter-io-alternative): Hunter.io finds emails only. LeadCognition captures GitHub buying signals, enriches with verified email and LinkedIn, and generates AI outreach — built for DevTool companies. Free tier, no sales call.
- [Best ZoomInfo Alternative in 2026 for Developer-Led Sales](https://leadcognition.io/zoominfo-alternative): ZoomInfo costs $15K+/year with no GitHub signal intelligence. LeadCognition is the self-serve alternative built for DevTool startups — $0-$799/month, no contract.
- [Best Cognism Alternative in 2026 for Developer-Led Sales](https://leadcognition.io/cognism-alternative): Cognism excels at GDPR-compliant B2B data with phone-verified mobile numbers — but has no GitHub signals. LeadCognition: self-serve, $0-$799/month, developer-native intent data.
- [Common Room Alternative (2026) — Switch Playbook + Pricing](https://leadcognition.io/common-room-alternative): Switching from Common Room? LeadCognition is the self-serve alternative with transparent pricing from $99/mo. Includes migration steps, budget comparison, and setup timeline.
- [Onfire Alternative — Self-Serve Developer Signal Intelligence](https://leadcognition.io/onfire-alternative): Looking for an Onfire.ai alternative? LeadCognition is self-serve from $49/mo vs Onfire
- [Reo.dev Alternative — GitHub Signal Intelligence at $99/mo](https://leadcognition.io/reo-dev-alternative): Looking for a Reo.dev alternative? LeadCognition starts at $99/mo vs Reo.dev
- [Pocus Alternative — GitHub Signal Intelligence at $99/mo](https://leadcognition.io/pocus-alternative): Pocus alternative: LeadCognition captures GitHub signals before developers sign up. Transparent pricing from $99/mo. No demo required.
- [Developer Signal Intelligence — What It Is & Why It Matters](https://leadcognition.io/developer-signal-intelligence): Developer signal intelligence uses GitHub activity data to identify developers evaluating your technology category. Learn how DevTool companies use signal intelligence to find warm leads before they fill out a form.
- [Developer Outreach — How to Reach Developers Without Cold Spam](https://leadcognition.io/developer-outreach): Developers ignore generic cold email. Signal-based developer outreach changes that — reach out only when a developer shows buying intent on GitHub, with personalized context about their actual activity.
- [Open Source Leads — Convert OSS Users to Paying Customers](https://leadcognition.io/open-source-leads): Open source leads are developers who engage with your repo and match your ideal customer profile. Learn how to monitor GitHub signals and convert OSS users to paid customers.
- [Developer Buying Signals — How to Identify Purchase Intent on GitHub](https://leadcognition.io/developer-buying-signals): Not all GitHub activity is a buying signal. Learn which signals predict real purchase intent — stars, forks, issues, PRs — and how to score and act on developer buying signals in 2026.
- [GitHub Intent Data — Turn Repository Activity into Sales Pipeline](https://leadcognition.io/github-intent-data): Traditional intent data tracks website visits. GitHub intent data tracks what developers actually DO — starring repos, opening issues, submitting PRs. For DevTool companies, it
- [Technical Recruiting Tool — Find Engineers from GitHub Activity](https://leadcognition.io/technical-recruiting-tool): Stop screening resumes. LeadCognition monitors GitHub activity to identify developers with proven skills in specific technologies — then enriches them with verified contact data for direct outreach.
- [Compare: LeadCognition vs Common Room & Reo.dev](https://leadcognition.io/vs): Compare LeadCognition vs Common Room, Reo.dev, and more. Transparent, side-by-side comparisons of developer signal intelligence tools.
- [LeadCognition vs Common Room (2026) — Neutral Feature Comparison](https://leadcognition.io/vs/common-room): Neutral, side-by-side LeadCognition vs Common Room comparison: pricing, features, signal coverage, and ideal use cases for each team type.
- [LeadCognition vs Reo.dev (2026 Comparison)](https://leadcognition.io/vs/reo-dev): LeadCognition vs Reo.dev: pricing, features, signal coverage compared. LC starts at $99/mo; Reo.dev ~$500+/user/mo with no self-serve option.
- [Common Room vs Reo.dev — Full Comparison (2026)](https://leadcognition.io/compare/common-room-vs-reo-dev): Common Room vs Reo.dev: pricing, signals, AI features, and who each is best for in 2026. Plus a self-serve third option starting at $99/mo.
- [Common Room Pricing in 2026 — Plans, Costs & Cheaper Alternatives](https://leadcognition.io/blog/common-room-pricing): Common Room doesn
- [6sense Pricing in 2026 — Plans, Costs & More Affordable Alternatives](https://leadcognition.io/blog/6sense-pricing): 6sense pricing starts at $50,000/year and scales to $200,000+. Annual contracts required. See what you get, what the hidden costs are, and which alternatives exist for DevTool startups.
- [Apollo.io Pricing in 2026 — Complete Plan Breakdown & Alternatives](https://leadcognition.io/blog/apollo-pricing): Apollo.io has 4 plans: Free ($0), Basic ($49/user/mo), Professional ($79/user/mo), Organization ($119/user/mo). See real team cost examples and when to consider alternatives.
- [What Is GitHub Signal Intelligence? The Definitive Guide (2026)](https://leadcognition.io/blog/what-is-github-signal-intelligence): GitHub signal intelligence monitors developer activity on GitHub — stars, forks, issues, PRs, commits — to identify which developers are actively evaluating, adopting, or migrating between tools. The definitive 2026 guide.
- [Developer Outreach Playbook: How to Reach Engineers Who Actually Reply (2026)](https://leadcognition.io/blog/developer-outreach-playbook): Most developer outreach fails because it targets job titles, not behaviors. This playbook covers how to find developers by GitHub signal, personalize first-touch, and run outreach that converts.
- [The Complete Guide to Developer Signal Intelligence (2026)](https://leadcognition.io/blog/developer-signal-intelligence-guide): Developer signal intelligence captures GitHub activity — stars, forks, PRs, commits — to identify developers evaluating your category before they fill out a form. The definitive 2026 guide.
- [Buyer Intent Data: What It Is and Why GitHub Signals Matter (2026)](https://leadcognition.io/blog/buyer-intent-data): Buyer intent data identifies who is actively researching your product right now. Learn the 8 GitHub intent signals ranked by buying probability and how DevTool companies use them to close deals faster.
- [B2B Data Providers Compared for DevTool Companies (2026)](https://leadcognition.io/blog/b2b-data-providers): Compare the top B2B data providers for DevTool companies in 2026. LeadCognition, Apollo, ZoomInfo, Clearbit, RocketReach, Lusha, Cognism, Hunter.io, Common Room, and 6sense — pricing, features, and which to choose.
- [How to Sell to Developers Without Being Annoying (2026 Guide)](https://leadcognition.io/blog/sell-to-developers): Developers hate cold outreach — but they do buy software. Learn the 6 rules of developer-led sales, how GitHub signals change the game, and outreach templates that actually work.
- [Signal-Based Selling: The DevTool GTM Playbook (2026)](https://leadcognition.io/blog/signal-based-selling): Signal-based selling uses real developer activity — GitHub stars, forks, PRs, deploys — to trigger personalized outreach. The complete GTM playbook for DevTool teams in 2026.
- [GitHub Activity as a Buying Signal: A Complete Guide (2026)](https://leadcognition.io/blog/github-activity-buying-signal): GitHub stars, forks, PRs, and commits reveal buying intent before a prospect ever fills out a form. Learn 8 signal types ranked by purchase intent, how to capture them, and which tools to use.
- [5 Best Koala Alternatives After the Shutdown (2026)](https://leadcognition.io/blog/best-koala-alternatives): Koala shut down in September 2025. Here are the 5 best alternatives for teams that depended on Koala
- [What Happened to Koala? Why It Shut Down and What to Use Instead](https://leadcognition.io/blog/what-happened-to-koala): Koala shut down in September 2025. Here
- [Why Traditional B2B Data Fails for Developer Products (2026)](https://leadcognition.io/blog/why-b2b-data-fails-devtools): ZoomInfo and Apollo were built to sell to executives, not engineers. Here
- [From GitHub Stars to Sales Pipeline: A Step-by-Step Guide (2026)](https://leadcognition.io/blog/github-stars-to-pipeline): GitHub stars aren
- [Contact Enrichment for Technical Roles: Beyond LinkedIn (2026)](https://leadcognition.io/blog/contact-enrichment-technical-roles): LinkedIn is insufficient for developer contacts. GitHub is the #1 developer identity platform. Learn how to enrich technical roles: GitHub → LinkedIn → work email → company → tech stack.
- [The DevTool GTM Stack: Tools for Developer-Led Sales (2026)](https://leadcognition.io/blog/devtool-gtm-stack): The complete DevTool GTM stack in 2026: signal capture, enrichment, CRM, outreach, and analytics tools — with stack recommendations by company stage from Seed to Series B+.
- [LeadCognition Blog — Developer Signal Intelligence Resources](https://leadcognition.io/blog/): Guides, playbooks, and research on developer signal intelligence, signal-based selling, GitHub intent data, and B2B data for DevTool companies.
- [LeadCognition Blog — Guides](https://leadcognition.io/blog/category/guides): In-depth guides on developer signal intelligence, GitHub intent data, and pipeline generation for DevTool sales teams.
- [LeadCognition Blog — Pricing Breakdowns](https://leadcognition.io/blog/category/pricing): Transparent pricing breakdowns for developer intelligence tools — Common Room, 6sense, Apollo, and more. No sales call required to compare.
- [LeadCognition Blog — Competitor Analysis](https://leadcognition.io/blog/category/competitors): Competitor analysis for developer intelligence tools — what happened to Koala, best alternatives, and why traditional B2B data fails DevTool companies.
- [LeadCognition Blog — Strategy](https://leadcognition.io/blog/category/strategy): GTM strategy for DevTool companies — signal-based selling, how to sell to developers, buyer intent data, and choosing the right B2B data provider.
- [Free Developer Intelligence Tools — LeadCognition](https://leadcognition.io/tools/): Free developer intelligence tools for DevTool teams: repo intent score, weekly GitHub trends, ecosystem snapshot, repo-vs-repo comparison, email finder, signal score, and tech stack lookup.
- [LeadCognition Release Notes | Product Momentum & Early Adopter Program](https://leadcognition.io/release-notes/): See recent LeadCognition product updates, exact release dates, and how to join the Early Adopter Program shaping what ships next.
- [GitHub Intent Trends — Top 100 Most-Evaluated Repos This Week · LeadCognition](https://leadcognition.io/trends/week): Free weekly report of the 100 most-evaluated repos on GitHub. Real signal data — not stargazers, not vanity metrics. Updated every Monday.
- [Top Rust GitHub Repos This Week — Intent Score Ranking · LeadCognition](https://leadcognition.io/trends/rust): The Rust repos gaining the most developer activity this week. Real signals — pushes, PRs, forks — not vanity stars. Free weekly report.
- [Top Python GitHub Repos This Week — Intent Score Ranking · LeadCognition](https://leadcognition.io/trends/python): The Python repos gaining the most developer activity this week. Real signals — pushes, PRs, forks — not vanity stars. Free weekly report.
- [Top TypeScript GitHub Repos This Week — Intent Score Ranking · LeadCognition](https://leadcognition.io/trends/typescript): The TypeScript repos gaining the most developer activity this week. Real signals — pushes, PRs, forks — not vanity stars. Free weekly report.
- [Top JavaScript GitHub Repos This Week — Intent Score Ranking · LeadCognition](https://leadcognition.io/trends/javascript): The JavaScript repos gaining the most developer activity this week. Real signals — pushes, PRs, forks — not vanity stars. Free weekly report.
- [Top Go GitHub Repos This Week — Intent Score Ranking · LeadCognition](https://leadcognition.io/trends/go): The Go repos gaining the most developer activity this week. Real signals — pushes, PRs, forks — not vanity stars. Free weekly report.
- [Top Java GitHub Repos This Week — Intent Score Ranking · LeadCognition](https://leadcognition.io/trends/java): The Java repos gaining the most developer activity this week. Real signals — pushes, PRs, forks — not vanity stars. Free weekly report.
- [Top Ruby GitHub Repos This Week — Intent Score Ranking · LeadCognition](https://leadcognition.io/trends/ruby): The Ruby repos gaining the most developer activity this week. Real signals — pushes, PRs, forks — not vanity stars. Free weekly report.
- [Top C++ GitHub Repos This Week — Intent Score Ranking · LeadCognition](https://leadcognition.io/trends/cpp): The C++ repos gaining the most developer activity this week. Real signals — pushes, PRs, forks — not vanity stars. Free weekly report.
- [Top C# GitHub Repos This Week — Intent Score Ranking · LeadCognition](https://leadcognition.io/trends/csharp): The C# repos gaining the most developer activity this week. Real signals — pushes, PRs, forks — not vanity stars. Free weekly report.
- [Top Swift GitHub Repos This Week — Intent Score Ranking · LeadCognition](https://leadcognition.io/trends/swift): The Swift repos gaining the most developer activity this week. Real signals — pushes, PRs, forks — not vanity stars. Free weekly report.
- [Top Kotlin GitHub Repos This Week — Intent Score Ranking · LeadCognition](https://leadcognition.io/trends/kotlin): The Kotlin repos gaining the most developer activity this week. Real signals — pushes, PRs, forks — not vanity stars. Free weekly report.
- [Top PHP GitHub Repos This Week — Intent Score Ranking · LeadCognition](https://leadcognition.io/trends/php): The PHP repos gaining the most developer activity this week. Real signals — pushes, PRs, forks — not vanity stars. Free weekly report.
- [Free GitHub Email Finder — Find Developer Contact Info](https://leadcognition.io/tools/github-email-finder): Find developer contact info from any GitHub username. Check public emails, bio, company, and location instantly. Free tool — no signup required. Get verified work emails with LeadCognition.
- [Free Developer Signal Score — Check Any GitHub Profile](https://leadcognition.io/tools/developer-signal-score): Calculate a developer signal score for any GitHub username. Scores profile completeness, follower network, repo activity, and hiring intent. Free tool — no signup required.
- [Free Company Tech Stack Lookup — Explore GitHub Organizations](https://leadcognition.io/tools/company-tech-stack): Explore any company
- [Ecosystem Snapshot — Instant company + GitHub ecosystem brief · LeadCognition](https://leadcognition.io/tools/ecosystem-snapshot): Free tool. Paste any company domain and get an instant ecosystem brief: product category, ICPs, use cases, themes, and the top GitHub repos shaping their market.
- [Companies Using Terraform — Developer Signals](https://leadcognition.io/who-uses/terraform): See which companies and developers are actively using Terraform. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Next.js — Developer Signals](https://leadcognition.io/who-uses/nextjs): See which companies and developers are actively using Next.js. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using React — Developer Signals](https://leadcognition.io/who-uses/react): See which companies and developers are actively using React. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using OpenTofu — Developer Signals](https://leadcognition.io/who-uses/opentofu): See which companies and developers are actively using OpenTofu. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Pulumi — Developer Signals](https://leadcognition.io/who-uses/pulumi): See which companies and developers are actively using Pulumi. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Kubernetes — Developer Signals](https://leadcognition.io/who-uses/kubernetes): See which companies and developers are actively using Kubernetes. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Docker — Developer Signals](https://leadcognition.io/who-uses/docker): See which companies and developers are actively using Docker. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Ansible — Developer Signals](https://leadcognition.io/who-uses/ansible): See which companies and developers are actively using Ansible. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Argo CD — Developer Signals](https://leadcognition.io/who-uses/argocd): See which companies and developers are actively using Argo CD. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Flux — Developer Signals](https://leadcognition.io/who-uses/flux): See which companies and developers are actively using Flux. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Dagger — Developer Signals](https://leadcognition.io/who-uses/dagger): See which companies and developers are actively using Dagger. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Grafana — Developer Signals](https://leadcognition.io/who-uses/grafana): See which companies and developers are actively using Grafana. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Prometheus — Developer Signals](https://leadcognition.io/who-uses/prometheus): See which companies and developers are actively using Prometheus. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using OpenTelemetry — Developer Signals](https://leadcognition.io/who-uses/opentelemetry): See which companies and developers are actively using OpenTelemetry. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Loki — Developer Signals](https://leadcognition.io/who-uses/loki): See which companies and developers are actively using Loki. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Jaeger — Developer Signals](https://leadcognition.io/who-uses/jaeger): See which companies and developers are actively using Jaeger. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using PostgreSQL — Developer Signals](https://leadcognition.io/who-uses/postgres): See which companies and developers are actively using PostgreSQL. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using ClickHouse — Developer Signals](https://leadcognition.io/who-uses/clickhouse): See which companies and developers are actively using ClickHouse. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using DuckDB — Developer Signals](https://leadcognition.io/who-uses/duckdb): See which companies and developers are actively using DuckDB. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Supabase — Developer Signals](https://leadcognition.io/who-uses/supabase): See which companies and developers are actively using Supabase. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Elasticsearch — Developer Signals](https://leadcognition.io/who-uses/elasticsearch): See which companies and developers are actively using Elasticsearch. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Svelte — Developer Signals](https://leadcognition.io/who-uses/svelte): See which companies and developers are actively using Svelte. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Astro — Developer Signals](https://leadcognition.io/who-uses/astro): See which companies and developers are actively using Astro. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Remix — Developer Signals](https://leadcognition.io/who-uses/remix): See which companies and developers are actively using Remix. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Hono — Developer Signals](https://leadcognition.io/who-uses/hono): See which companies and developers are actively using Hono. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using FastAPI — Developer Signals](https://leadcognition.io/who-uses/fastapi): See which companies and developers are actively using FastAPI. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using LangChain — Developer Signals](https://leadcognition.io/who-uses/langchain): See which companies and developers are actively using LangChain. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using LlamaIndex — Developer Signals](https://leadcognition.io/who-uses/llamaindex): See which companies and developers are actively using LlamaIndex. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Vercel AI SDK — Developer Signals](https://leadcognition.io/who-uses/vercel-ai-sdk): See which companies and developers are actively using Vercel AI SDK. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Stripe Node SDK — Developer Signals](https://leadcognition.io/who-uses/stripe-node): See which companies and developers are actively using Stripe Node SDK. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Popular Developer Tools](https://leadcognition.io/who-uses/): Browse companies and developers using popular developer tools. See adoption stats, notable users, and find developers through GitHub signals.
- [GitHub Repo Comparison Tool — Compare developer activity · LeadCognition](https://leadcognition.io/tools/repo-vs-repo): Compare any two GitHub repos side-by-side. Real 30-day developer evaluation data from GitHub Archive — not vanity stars. Free tool.
- [Next.js vs Remix — Real developer activity comparison (2026) · LeadCognition](https://leadcognition.io/tools/compare/nextjs-vs-remix): See which framework — Next.js or Remix — has more active developer evaluation right now. Real GitHub Archive data, not vanity stars.
- [LangChain vs LlamaIndex — Real developer activity comparison (2026) · LeadCognition](https://leadcognition.io/tools/compare/langchain-vs-llamaindex): LangChain vs LlamaIndex — which AI framework developers are actively evaluating? Live intent scores from GitHub Archive.
- [Vue vs React — Real developer activity comparison (2026) · LeadCognition](https://leadcognition.io/tools/compare/vue-vs-react): Vue vs React — compare developer evaluation activity, GitHub signals, and momentum. Free tool powered by GitHub Archive.
- [Svelte vs SolidJS — Real developer activity comparison (2026) · LeadCognition](https://leadcognition.io/tools/compare/svelte-vs-solid): Svelte vs SolidJS — real developer activity comparison. See which framework is gaining traction in the last 30 days.
- [Bun vs Node.js — Real developer activity comparison (2026) · LeadCognition](https://leadcognition.io/tools/compare/bun-vs-node): Bun vs Node.js — which runtime has more active developer evaluation? Real GitHub Archive intent scores.
- [Deno vs Node.js — Real developer activity comparison (2026) · LeadCognition](https://leadcognition.io/tools/compare/deno-vs-node): Deno vs Node.js — side-by-side GitHub activity comparison. Real intent data, not star counts.
- [Vite vs Webpack — Real developer activity comparison (2026) · LeadCognition](https://leadcognition.io/tools/compare/vite-vs-webpack): Vite vs Webpack — which build tool has more developer momentum right now? Free GitHub Archive comparison.
- [Tailwind CSS vs Bootstrap — Real developer activity comparison (2026) · LeadCognition](https://leadcognition.io/tools/compare/tailwind-vs-bootstrap): Tailwind CSS vs Bootstrap — compare developer evaluation signals and momentum. Real 30-day GitHub data.
- [PostgreSQL vs MySQL — Real developer activity comparison (2026) · LeadCognition](https://leadcognition.io/tools/compare/postgres-vs-mysql): PostgreSQL vs MySQL — which database has more active developer evaluation? Free intent score comparison.
- [Redis vs Memcached — Real developer activity comparison (2026) · LeadCognition](https://leadcognition.io/tools/compare/redis-vs-memcached): Redis vs Memcached — developer evaluation activity comparison using GitHub Archive data.
- [Kubernetes vs Docker — Real developer activity comparison (2026) · LeadCognition](https://leadcognition.io/tools/compare/kubernetes-vs-docker): Kubernetes vs Docker — compare GitHub evaluation signals. See which has more active developer interest.
- [NestJS vs Express — Real developer activity comparison (2026) · LeadCognition](https://leadcognition.io/tools/compare/nestjs-vs-express): NestJS vs Express — which Node.js framework has more active developer evaluation in 2026?
- [tRPC vs GraphQL — Real developer activity comparison (2026) · LeadCognition](https://leadcognition.io/tools/compare/trpc-vs-graphql): tRPC vs GraphQL — compare developer evaluation activity. Real GitHub Archive intent scores.
- [Prisma vs Drizzle ORM — Real developer activity comparison (2026) · LeadCognition](https://leadcognition.io/tools/compare/prisma-vs-drizzle): Prisma vs Drizzle ORM — which TypeScript ORM is gaining more developer traction? Free comparison tool.
- [Zod vs Yup — Real developer activity comparison (2026) · LeadCognition](https://leadcognition.io/tools/compare/zod-vs-yup): Zod vs Yup — compare schema validation library adoption. Real GitHub evaluation signals.
- [Jest vs Vitest — Real developer activity comparison (2026) · LeadCognition](https://leadcognition.io/tools/compare/jest-vs-vitest): Jest vs Vitest — which testing framework has more developer momentum in 2026? Real GitHub data.
- [Playwright vs Cypress — Real developer activity comparison (2026) · LeadCognition](https://leadcognition.io/tools/compare/playwright-vs-cypress): Playwright vs Cypress — compare E2E testing framework adoption and developer evaluation activity.
- [TanStack Router vs React Router — Real developer activity comparison (2026) · LeadCognition](https://leadcognition.io/tools/compare/tanstack-vs-react-router): TanStack Router vs React Router — which router has more active developer evaluation? Free comparison.
- [shadcn/ui vs MUI — Real developer activity comparison (2026) · LeadCognition](https://leadcognition.io/tools/compare/shadcn-vs-mui): shadcn/ui vs MUI — which component library is gaining more developer momentum? GitHub Archive data.
- [Supabase vs Firebase — Real developer activity comparison (2026) · LeadCognition](https://leadcognition.io/tools/compare/supabase-vs-firebase): Supabase vs Firebase — compare developer evaluation activity in 2026. Real GitHub Archive intent scores.
- [Apollo.io vs ZoomInfo — Full Comparison (2026)](https://leadcognition.io/compare/apollo-vs-zoominfo): Apollo.io vs ZoomInfo: pricing, database size, sequencing, integrations, and who each is best for in 2026. Plus a GitHub-native third option for DevTool teams.
- [Hunter.io vs RocketReach — Full Comparison (2026)](https://leadcognition.io/compare/hunter-vs-rocketreach): Hunter.io vs RocketReach: pricing, email accuracy, coverage, and who each is best for in 2026. Plus a GitHub-native option for DevTool teams targeting developers.
- [Common Room vs Reo.dev — Full Comparison (2026)](https://leadcognition.io/compare/lusha-vs-apollo): Common Room vs Reo.dev: pricing, signals, AI features, and who each is best for in 2026. Plus a self-serve third option starting at $99/mo.
- [Onfire Alternative — Self-Serve Developer Signal Intelligence](https://leadcognition.io/onfire-alternative): Looking for an Onfire.ai alternative? LeadCognition is self-serve from $49/mo vs Onfire
- [Cognism vs ZoomInfo — 2026 Comparison for Sales Teams](https://leadcognition.io/compare/cognism-vs-zoominfo): Cognism vs ZoomInfo: data coverage, pricing, compliance, and who each is best for in 2026. Plus a developer-focused alternative neither covers.
- [Companies Using Popular Developer Tools](https://leadcognition.io/who-uses/): Browse companies and developers using popular developer tools. See adoption stats, notable users, and find developers through GitHub signals.
- [Companies Using Ansible — Developer Signals](https://leadcognition.io/who-uses/ansible): See which companies and developers are actively using Ansible. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Argo CD — Developer Signals](https://leadcognition.io/who-uses/argocd): See which companies and developers are actively using Argo CD. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Astro — Developer Signals](https://leadcognition.io/who-uses/astro): See which companies and developers are actively using Astro. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using ClickHouse — Developer Signals](https://leadcognition.io/who-uses/clickhouse): See which companies and developers are actively using ClickHouse. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Dagger — Developer Signals](https://leadcognition.io/who-uses/dagger): See which companies and developers are actively using Dagger. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Docker — Developer Signals](https://leadcognition.io/who-uses/docker): See which companies and developers are actively using Docker. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using DuckDB — Developer Signals](https://leadcognition.io/who-uses/duckdb): See which companies and developers are actively using DuckDB. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Elasticsearch — Developer Signals](https://leadcognition.io/who-uses/elasticsearch): See which companies and developers are actively using Elasticsearch. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using FastAPI — Developer Signals](https://leadcognition.io/who-uses/fastapi): See which companies and developers are actively using FastAPI. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Flux — Developer Signals](https://leadcognition.io/who-uses/flux): See which companies and developers are actively using Flux. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Grafana — Developer Signals](https://leadcognition.io/who-uses/grafana): See which companies and developers are actively using Grafana. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Hono — Developer Signals](https://leadcognition.io/who-uses/hono): See which companies and developers are actively using Hono. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Jaeger — Developer Signals](https://leadcognition.io/who-uses/jaeger): See which companies and developers are actively using Jaeger. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Kubernetes — Developer Signals](https://leadcognition.io/who-uses/kubernetes): See which companies and developers are actively using Kubernetes. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using LangChain — Developer Signals](https://leadcognition.io/who-uses/langchain): See which companies and developers are actively using LangChain. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using LlamaIndex — Developer Signals](https://leadcognition.io/who-uses/llamaindex): See which companies and developers are actively using LlamaIndex. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Loki — Developer Signals](https://leadcognition.io/who-uses/loki): See which companies and developers are actively using Loki. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Next.js — Developer Signals](https://leadcognition.io/who-uses/nextjs): See which companies and developers are actively using Next.js. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using OpenTelemetry — Developer Signals](https://leadcognition.io/who-uses/opentelemetry): See which companies and developers are actively using OpenTelemetry. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using OpenTofu — Developer Signals](https://leadcognition.io/who-uses/opentofu): See which companies and developers are actively using OpenTofu. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using PostgreSQL — Developer Signals](https://leadcognition.io/who-uses/postgres): See which companies and developers are actively using PostgreSQL. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Prometheus — Developer Signals](https://leadcognition.io/who-uses/prometheus): See which companies and developers are actively using Prometheus. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Pulumi — Developer Signals](https://leadcognition.io/who-uses/pulumi): See which companies and developers are actively using Pulumi. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using React — Developer Signals](https://leadcognition.io/who-uses/react): See which companies and developers are actively using React. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Remix — Developer Signals](https://leadcognition.io/who-uses/remix): See which companies and developers are actively using Remix. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Stripe Node SDK — Developer Signals](https://leadcognition.io/who-uses/stripe-node): See which companies and developers are actively using Stripe Node SDK. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Supabase — Developer Signals](https://leadcognition.io/who-uses/supabase): See which companies and developers are actively using Supabase. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Svelte — Developer Signals](https://leadcognition.io/who-uses/svelte): See which companies and developers are actively using Svelte. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Terraform — Developer Signals](https://leadcognition.io/who-uses/terraform): See which companies and developers are actively using Terraform. GitHub stats, notable adopters, and how to reach them through signal intelligence.
- [Companies Using Vercel AI SDK — Developer Signals](https://leadcognition.io/who-uses/vercel-ai-sdk): See which companies and developers are actively using Vercel AI SDK. GitHub stats, notable adopters, and how to reach them through signal intelligence.

## Key Facts

- Launched: 2024
- Pricing: Free ($0, 25 one-time identity unlocks — LinkedIn + name + company only; email + phone require Pro; weekly digest), Pro ($99/mo or $79/mo annual, 500 credits), Business ($299/mo or $239/mo annual, 2,000 credits), Scale ($799/mo or $639/mo annual, 8,000 credits), Enterprise (from $1,999/mo, custom). Subscription-gated top-up packs: 500/$79, 2,500/$299, 10,000/$899, 25,000/$1,499.
- GitHub signal types tracked: Stars, forks, pull requests, commits, issues, code reviews, release downloads, watches
- Enrichment: LinkedIn URL, verified work email, job title, company, location
- Target users: DevTool companies, SDRs, technical recruiters, founders
- Key differentiator: Only self-serve, transparently-priced GitHub signal intelligence platform (as of 2026)
- Competitors: Koala (shut down Sept 2025), Common Room ($12K+/yr), Reo.dev ($500+/user/mo), Clearbit (acquired by HubSpot), Apollo.io ($49/user/mo), ZoomInfo ($15K+/yr), 6sense ($50K+/yr)

## Optional

- [llms-full.txt](https://leadcognition.io/llms-full.txt): Detailed product documentation