ReJourney

ReJourney is an open-source, self-hostable observability platform designed for web and mobile applications. It focuses on delivering high-performance session replay and real-time incident detection without the bloat of traditional monitoring tools.

Unlike competitors that struggle with modern UI frameworks, ReJourney captures every rendered pixel at true FPS — including Mapbox (Metal), custom shaders, and GPU-accelerated views. Its live incident stream surfaces crashes, errors, and rage taps as they happen, while automatic ANR (Application Not Responding) detection provides full thread dumps and main thread analysis.

Beyond error tracking, ReJourney offers journey mapping to visualize user navigation paths, interaction heat maps to optimize UI placement, and geo-intelligence to monitor stability across regions. Growth engines track user retention and segment loyalty, helping teams understand how releases impact power users versus bounce rates.

ReJourney provides SDKs for React Native, Expo, Swift, and browser-based apps, with first-class support for Next.js, Vue.js, and Nuxt frameworks. It can be self-hosted or used as a hosted service.