Compose vs Statsig

Compose is a pay-as-you-go web platform for A/B testing and conversion rate optimization. It supports A/B/n, split URL, split theme, and split template tests, with custom goals, audiences, triggers, and traffic allocation. A visual editor and audience targeting are available for building and directing experiments. For planning, teams can use a shared hypothesis backlog, PIE prioritization, and an experimentation roadmap. Reports update in real time and include frequentist statistical calculations; GA4 and BigQuery integrations are listed. Shopify users can create no-code experiments on themes and templates through Shopify’s editor. Compose says its client-side testing uses AWS Lambda@Edge for speed and to avoid flicker. The product lists unlimited experiments, variations, collaborators, and projects. You can explore it without charge until launching a first experiment, but there is no traditional free trial. The Early Adopter Plan is $0.00 per month, billed at $0.0012 per monthly tested user, with usage billed monthly for the prior month. Server-side testing is not available.

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.