Statsig

Statsig is a product development platform that helps teams measure the impact of what they ship using experimentation, feature flags, and product analytics. It’s built for startups that want to launch safely, learn fast, and make decisions with real usage data.  What you get Free Developer plan (no credit card required). 2M events per month. Unlimited flag and config checks. 50,000 session replays per month. Core platform capabilities to run A/B tests and experiments, manage feature flags, and analyze product and web usage. Why it matters for startups Lets you instrument product measurement early without paying to get started. Makes releases safer by pairing feature flags with metrics and experimentation. Helps small teams find issues and drop-offs faster with session replays tied to shipped changes. Use cases / best for Teams rolling out new features behind flags and measuring impact Founders running A/B tests on onboarding, paywalls, and activation flows Product teams using session replays to diagnose UX friction and bugs FAQs 1. Is the Developer plan really free? Yes, it is listed as free with no credit card required. 2. What are the main usage limits on the free plan? It includes 2M events per month and 50,000 session replays per month, with unlimited flag and config checks. 3. Can I use the free plan for feature flags and experiments? Yes, the Developer plan includes experimentation and feature flagging capabilities.