I'm trying to find an example (or generally figure out) how to create a flutter app that starts when the mobile phone boots up.
Are there any flutter/dart specific examples or packages for this?
If not, how would I have to implement such a functionality? (I've found some java examples for Android, but I would prefer a way to do it with dart that also works on iOS)
In short, iOS does not allow to have this kind of behaviour.
Additional info you can find here
voip (from Background modes)
The app provides Voice-over-IP services. Apps with this key are automatically launched after system boot so that the app can reestablish VoIP services. Apps with this key are also allowed to play background audio.