Featurevisor vs Statsig

Featurevisor is a Git-based tool for managing feature flags, experiments and remote configuration through YAML files in a Git repository. Teams build datafiles for each environment, deploy them and evaluate features through an SDK. Rules can target users in order, roll out a percentage and assign weighted experiment variations. Typed global and feature variables allow defaults and targeted overrides, with schemas validated during datafile builds. Applications fetch static JSON datafiles and evaluate flags locally in memory, without a network request for each decision; the datafiles are served from the customer’s own CDN. YAML test specifications can check expected behavior locally or in CI, with failed assertions returning a non-zero exit. Git pull requests and CI linting, tests and builds provide change control. Featurevisor is self-hosted and MIT-licensed. Its free plan is free, with no per-seat pricing or evaluation service to keep running. Listed platforms include Android, iOS, Linux, macOS, web and Windows.

Statsig is a platform for assigning experiments, analyzing results, managing features, and reviewing product usage. Its experiment methods include A/B/n tests, Bayesian and frequentist approaches, sequential and switchback tests, and multi-arm bandits. Feature tools include flags, dynamic configurations, percentage-based and scheduled rollouts, targeting, and release impact monitoring. Product analytics cover funnels, retention, user journeys, dashboards, and web and mobile session replays. Statsig lists client SDKs for JavaScript, React, React Native, iOS, Android,.NET, Roku, Unity, Dart/Flutter, and C++, plus server SDKs for Node.js, Java, Python, Go, Ruby,.NET, PHP, Rust, and C++. Listed integrations include Segment, Snowflake, Amplitude, Google Analytics, Mixpanel, and Jira. It supports only one data connection at a time. Developer is free and includes 2 million events per month; metric-lift computations stop after that limit unless the customer upgrades. Pro is $150 a month, with 5 million events included and $0.05 per 1K events thereafter. Warehouse-native deployment is an Enterprise offering.