Scheduler works perfectly fine on a Pixel phone. I am missing zero backup on Signal or WhatsApp.
Automatic synchronization would work perfectly fine on those phones, and probably many others. A daily quick sync might be exactly what we need for better user UX. Let’s not ignore the potential solutions that can solve our serious UX issues.
Ywallet does not rely on the scheduler, the same way Signal and WhatsApp do.
There, it’s right here: Schedule alarms | Background work | Android Developers
Maybe. Personally I would be into a daily sync at like 3am when I hopefully sleep, the phone is plugged, and I am generally on WiFi. It feels like a reasonable compromise that would not bother most people and keep the wallet mostly up to date and ready to use anytime it is needed.