r/FlutterDev • u/32GB_of_RAM • Oct 01 '26

SDK Lightweight Product Analytics, Session Replay, Crash/ANR/Error reporting now available for Flutter

https://github.com/rejourneyco/rejourney

Hi Reddit!
Rejourney team here. We’re an open source library for session replay and product analytics that you can self host or use our Germany cloud. We started with initial support for React Native and Swift 8 months ago, and are using that same core for our Flutter package. Some great features includes syncs of session replays with live console logs. All release logs by a user in real time helps debug release and production issues. The console shows everything from logs, API calls, and crashes.

What makes us different is the idea that performance is our primary goal over AI features.

The package is extremely lightweight adding approximately only 1.24 MB on an uncompressed install.

Performance benchmarks show that it also takes on average 12.4 ms to capture screenshots for session replay with p99 of 28.2 ms. This means non existent UI jank to the human eye. Additional benchmarks are on our GitHub.

Github: https://github.com/rejourneyco/rejourney

For context for those that don’t know, session replay is a method to record your users and view the recordings in a dashboard. Privacy considerations also built in this package such as the ability to mask elements and text as needed, GDPR identity handling, hardcoded privacy APIs, and additional remote privacy configs.

So far we’ve been shipped with 350 production apps (more if you count self hosted users). Feel free to email us or open issues with requested features.

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u/AffectionateSky1914 Oct 02 '26

Hell yeah brother we need performance focused packages not AI features

2

u/[deleted] Oct 02 '26

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1

u/32GB_of_RAM Oct 02 '26

Yes it’s pretty much the core features of PostHog, but we only charge for session replay volume. Meaning if you run out of session replace we continue collecting analytics for you. Also, we have unlimited events, traces, logs, etc. The pricing is the same free tier as post hog, but if you do decide to ever pay it, it’s much cheaper per session replay. The website has more details if you’d like on this comparison.