Tool profile
Experimentation platform combining feature flags, A B testing, and analytics for product teams.
Teams wanting gates + experiments + analytics without stitching vendors
Statsig bundles feature gates/config, experiments, product & web analytics, and session replay behind one event-metered platform with generous free positioning.
Per statsig.com/pricing (March 2026), Developer is free (no credit card) with 2 million events per month, unlimited feature flag & config checks, 50,000 session replays per month, 1-year analytics retention, and unlimited seats on the plan card. Pro is $150/month including 5 million events, then $0.05 per 1,000 events beyond that, still unlimited flag/config checks, and 100,000 session replays/month, plus advanced experimentation, unlimited analytics retention, change reviews, and API controls per the feature list. Enterprise is custom with warehouse-native deployment, SSO/RBAC teams, priority support, and HIPAA eligibility (BAA).
Compare LaunchDarkly for enterprise feature-management depth; compare PostHog for open-core bundling; compare Amplitude Experiment when analytics is already Amplitude-centric.
Quick fit
Editorial take
The $150 line is mostly about events after the 5M included bucket—model funnel volume carefully. Unlimited flag checks reduce surprise compared to API-call-metered vendors, but events still matter for analytics/replay. Enterprise warehouse mode changes architecture—involve data eng early. For alternatives, LaunchDarkly wins RFP depth; GrowthBook open source competes on cost; PostHog overlaps on replay + flags.
What it does well
Primary use cases
Fit notes
Compare with
Pressure-test this pick against nearby alternatives.
Apache Kafka
Free planEvent streaming and event-driven architectures
Open-source distributed event streaming platform for high-throughput pipelines, pub/sub, and stream-processing ecosystems.
Choose Kafka when replayable event streams and ecosystem breadth matter more than the lightest possible operational footprint.
Pricing snapshot
Statsig's pricing page shows Developer at $0 with 2 million events per month, unlimited flag and config checks, 50,000 session replays per month, 1-year analytics retention, and unlimited seats. Pro is $150 per month with 5 million events included, then $0.05 per 1,000 additional events, plus 100,000 session replays per month and advanced experimentation and analytics features. Enterprise is custom.
Arcjet
Free planApplication runtime security
Runtime security toolkit for modern applications and AI systems that helps teams enforce quotas, block bots, prevent prompt abuse, and ship app-level protections in code.
Closer to application-runtime security and abuse-prevention tooling than to classic perimeter appliances.
