BeNoted

Feedback is only useful if you can act on it, and "the app is broken" with no device, OS, or version attached is a dead end. BeNoted is a drop-in Flutter SDK that lets users send feedback from inside your app — and quietly attaches everything you need to reproduce the problem: device model and manufacturer, OS and SDK version, your app and build number, the Flutter version, even battery level and timezone.

Optional email capture lets you follow up, custom fields let you tag whatever your app cares about, and submissions are secured with Firebase App Check + Auth so your inbox doesn't fill with junk. It's a few lines to integrate, and it turns a vague one-star review into an actionable report.