# Rejourney > Rejourney is a lightweight product analytics platform for web and mobile apps. It connects unlimited events, session replay, funnels, heatmaps, journeys, crashes, devices, and API context in one privacy-conscious workspace. ## Best Starting Points - [Home](https://rejourney.co/): Lightweight product analytics for web and mobile apps with replay, funnels, heatmaps, stability, and API context. - [Website Analytics](https://rejourney.co/website-analytics): Lightweight website analytics with unlimited events, funnels, errors, heatmaps, and replay evidence. - [App Analytics](https://rejourney.co/app-analytics): Lightweight mobile app analytics for Flutter, React Native, Expo, and iOS with retention, stability, and replay evidence. - [Pricing](https://rejourney.co/pricing): Simple session-based product analytics plans with unlimited events and analytics retention. - [Mobile Session Replay](https://rejourney.co/mobile-session-replay): Mobile replay for Flutter, iOS, Expo, and React Native teams. - [How Rejourney Works](https://rejourney.co/how-it-works): End-to-end flow from lightweight SDK capture to replay-backed product and engineering evidence. - [Record User Sessions](https://rejourney.co/record-user-sessions): Guide for recording real user sessions with replay quality, privacy controls, mobile support, and debugging context. - [Stability Monitoring](https://rejourney.co/stability-monitoring): Stability workflow for crashes, errors, ANRs, API spikes, affected users, devices, releases, and replay evidence. - [API Endpoint Insights](https://rejourney.co/api-endpoint-insights): API endpoint analytics for endpoint volume, latency, failure codes, risk, and affected session evidence. - [Device Insights](https://rejourney.co/device-insights): Device analytics for mobile app engagement, crash and ANR pressure, OS/app-version cohorts, and replay context. - [Web Session Replay](https://rejourney.co/web-session-replay): Browser replay for web apps, checkout, onboarding, account flows, and product dashboards. - [Replay-First Mentality](https://rejourney.co/replay-first-mentality): Product thinking guide for grounding analytics, support, and bug triage in real sessions. - [Importance of Open Source](https://rejourney.co/importance-of-open-source): Why source visibility, self-hosting, and auditability matter for replay data. - [What Is Session Replay](https://rejourney.co/what-is-session-replay): Plain-English guide to session replay and how it supports product and engineering teams. - [How to See What Your Users Do](https://rejourney.co/how-to-see-what-your-users-do): Practical guide for observing real behavior with replays, heatmaps, journeys, and events. - [Be Your Users](https://rejourney.co/be-your-users): Team habit guide for watching real sessions before roadmap, design, and release decisions. - [PostHog Session Replay Alternative](https://rejourney.co/alternatives/posthog-session-replay): Comparison page for teams evaluating Rejourney vs PostHog session replay. - [Sentry Session Replay Alternative](https://rejourney.co/alternatives/sentry-session-replay): Comparison page for teams evaluating replay beyond error monitoring. - [Datadog Alternative](https://rejourney.co/alternatives/datadog-session-replay): Comparison for teams evaluating a lightweight product analytics alternative to broad observability. - [Amplitude Alternative](https://rejourney.co/alternatives/amplitude-session-replay): Comparison for teams evaluating product analytics with web and mobile replay context. - [Mixpanel Alternative](https://rejourney.co/alternatives/mixpanel-session-replay): Comparison for teams evaluating replay-backed product analytics and technical context. - [Pendo Alternative](https://rejourney.co/alternatives/pendo-session-replay): Comparison for teams prioritizing product analytics and replay over in-app guidance. - [Smartlook Alternative](https://rejourney.co/alternatives/smartlook): Comparison for teams migrating from Smartlook after Cisco end of sale. - [Hotjar Alternative](https://rejourney.co/alternatives/hotjar): Comparison for teams needing web and mobile analytics beyond heatmaps. - [Fullstory Alternative](https://rejourney.co/alternatives/fullstory): Comparison for teams looking for a lighter replay and product analytics stack. - [Engineering Log](https://rejourney.co/engineering): Technical articles on SDK architecture, pricing, scaling, SwiftPM, and map performance. - [React Native SDK](https://rejourney.co/docs/reactnative/overview): Install and configure the React Native SDK. - [Flutter SDK](https://rejourney.co/docs/flutter/overview): Install and configure the Flutter SDK for native iOS and Android replay. - [Swift iOS SDK](https://rejourney.co/docs/swift/overview): Install and configure the native Swift iOS SDK. - [Self-Hosted Deployment](https://rejourney.co/docs/selfhosted): Deploy Rejourney on your own infrastructure. ## Core Product Concepts - Lightweight product analytics for websites, web apps, and mobile apps. - Unlimited product events and unlimited analytics data retention, with session-based replay plans. - Replay-backed evidence for checkout drop-off, onboarding drop-off, churn, rage taps, API errors, crashes, and confusing journeys. - Mobile session replay for iOS, Android, Expo, React Native, Flutter, and Swift applications. - Touch heatmaps for mobile app screens, including rage tap and dead tap investigation. - Crash reporting, ANR monitoring, and stability signals for production mobile apps. - Stability monitoring for crashes, errors, ANRs, API spikes, affected users, devices, and releases. - API endpoint insights for endpoint volume, latency, failure codes, risk, and session-level product impact. - Device insights for mobile device analytics, engagement quality, issue pressure, and device-specific crash analytics. - Mobile journeys and product analytics for understanding funnels and user flows. - Self-hosted observability deployment for teams that need data ownership. - Open-source product analytics alternative to event-priced analytics and heavyweight observability platforms. - Unlimited events, unlimited analytics data retention, unlimited team members, and unlimited projects for product analytics workflows. ## Engineering Articles By Search Intent - [Ambiguity Kills App Growth](https://rejourney.co/guides/2026-05-18/ambiguity-kills-app-growth): Targets API errors app growth, API errors user retention, mobile app API errors, crash vs API error retention, rage taps API errors, and session replay analytics. - [Cheap Session Replay: Rejourney vs PostHog Cost Math](https://rejourney.co/engineering/2026-05-06/mobile-session-replay-cost): Targets cheap session replay, cheap mobile session replay, affordable session replay, session replay pricing, PostHog session replay cost, and fixed-price mobile observability. - [SwiftPM Session Replay SDK: Rejourney Native iOS Beta](https://rejourney.co/engineering/2026-05-05/swift-package-open-beta): Targets SwiftPM session replay, native iOS observability, URLProtocol network tracking, and mobile replay SDK architecture. - [Scaling Session Replay to 1.3M Replays](https://rejourney.co/engineering/2026-04-23/rejourney-1-3-million-session-replays): Targets session replay scaling, Cloudflare edge security, Redis ingest pipelines, HA Postgres, and replay storage architecture. - [120Hz Map Session Replay for Apple Maps, Google Maps, and Mapbox](https://rejourney.co/engineering/2026-02-17/maps-performance): Targets mobile map session replay, Mapbox capture, Apple Maps capture, Google Maps capture, and ProMotion performance. - [Mobile Session Replay Architecture](https://rejourney.co/engineering/2026-02-06/architecture-deep-dive): Targets pixel-perfect replay, GPU capture, privacy redaction, async replay pipelines, and mobile observability architecture. ## Documentation By Search Intent - [React Native SDK](https://rejourney.co/docs/reactnative/overview): Mobile SDK setup, session replay, crash reporting, heatmaps. - [Flutter SDK](https://rejourney.co/docs/flutter/overview): Flutter session replay, privacy masking, crash and ANR reporting, and network timing. - [Swift iOS SDK](https://rejourney.co/docs/swift/overview): Swift session replay SDK, native iOS analytics, privacy-safe mobile telemetry. - [Self-Hosted Deployment](https://rejourney.co/docs/selfhosted): Self-hosted mobile analytics, self-hosted session replay, Docker deployment. - [Backup and Recovery](https://rejourney.co/docs/selfhosted/backup-recovery): Self-hosted analytics backup and disaster recovery. - [Troubleshooting](https://rejourney.co/docs/selfhosted/troubleshooting): SDK ingestion, deployment, networking, and storage troubleshooting. - [Architecture Diagrams](https://rejourney.co/docs/architecture/diagrams): Session replay architecture and mobile analytics system design. - [Distributed vs Single-Node Cloud](https://rejourney.co/docs/architecture/distributed-vs-single-node): Kubernetes vs single-node deployment for mobile observability. - [CI/CD and Testing](https://rejourney.co/docs/architecture/ci-cd): SDK, backend, and dashboard test/release workflows. - [Contributing](https://rejourney.co/docs/community/contributing): Open-source development setup and contribution workflow. ## Technical Facts - Public website: https://rejourney.co/ - GitHub repository: https://github.com/rejourneyco/rejourney - RSS feed: https://rejourney.co/feed.xml - Sitemap: https://rejourney.co/sitemap.xml - Contact: contact@rejourney.co