Amplitude built a deep product-analytics platform around one idea - track what users do, then slice it into funnels, paths, and retention to see where a product wins or loses people. For teams running on behavioral data it is a serious tool. What sends people looking is ownership: the events that describe your users live inside Amplitude, governed by its pricing tiers and its definition of an active user, and pulling that history back out to analyze it your own way is never as clean as sending it in.
The open source alternative class below gives you the same behavioral analytics over data you hold yourself. User actions land in your own store, where funnels and cohorts are computed from the raw events rather than a vendor's rolled-up summary. You decide retention, you query the history directly, and the analysis answers to you instead of a plan limit.
Umami is a simple, fast, privacy-focused web analytics platform and an open source alternative to Google Analytics, Mixpanel, and Amplitude. It tracks site traffic without cookies, so there is no cookie banner to add, and the dashboard stays clean and easy to read.
PostHog is an open source, all-in-one platform for building products. It brings product analytics, web analytics, session replay, error tracking, feature flags, experiments, surveys, a data warehouse, data pipelines, AI observability, and workflows together in one stack.
Countly is a digital analytics and customer engagement platform for understanding user behavior across mobile, web, desktop, and connected devices. It keeps data on infrastructure you control, with on-premises or private-cloud deployment for teams that need full data ownership.
