Tool Directory

Feature flagging, A/B testing, and product experimentation platform. Run experiments at scale, measure impact with statistical rigor, and ship features with confidence. Generous free tier for startups. Built by ex-Facebook engineers who scaled experimentation infrastructure to billions of users.

Open-source product analytics suite with session replay, feature flags, and A/B testing.

Product experience insights platform that shows you how users actually behave on your product through heatmaps, session recordings, and feedback surveys. Hotjar bridges the gap between quantitative analytics and qualitative understanding — letting accelerator teams see exactly where users get confused, drop off, or delight. Critical for iterating on PMF.

Digital analytics platform for understanding user behavior and driving product growth.

Product analytics platform that helps teams understand user behavior. Track events, build funnels, analyze retention, and make data-driven product decisions.

Product-led sales platform that surfaces revenue signals from product usage data. Connects to your data warehouse, CRM, and product analytics to identify which free users are ready to convert. Ideal for PLG startups in accelerator portfolios looking to build their first sales motion on top of organic adoption.

Customer data platform that collects, cleans, and routes your user data to hundreds of analytics and marketing tools. Single API for all your data integration needs.