Amplitude

Amplitude is a product analytics and digital optimization platform focused on helping product teams understand user behavior, measure feature impact, and run experiments at scale. Founded in 2012, Amplitude is used by over 3,000 companies including Walmart, PayPal, Instacart, and Dropbox, and is publicly traded (NASDAQ: AMPL). Amplitude's core analytical framework is built around the concept of "Amplitude Events" — discrete user interactions tracked with associated properties (user traits, event context, device info). The platform provides Funnel analysis, Retention charts, Pathfinder (user journey flows), Revenue analytics (LTV, ARPU), Compass (product-market fit scoring), and Impact analysis (feature adoption correlation with retention). Amplitude Experiment is a built-in A/B and feature flag testing platform that uses Amplitude's behavioral data to define experiment segments and measure statistical significance natively — without requiring a separate tool like LaunchDarkly or Optimizely. Amplitude Session Replay (2023) added video-quality session recordings linked directly to Amplitude events.