

A cracked screen and a tired battery matter a lot less once it’s a frame - mine hangs on a wall on a charger and never runs on battery. If the battery is swollen rather than just weak, don’t leave it charging unattended though.
Nothing gets installed on the tablet either, it’s just Safari in fullscreen pointed at the add-on, so an iPad that can’t take app updates anymore is fine.
Straight answer: SnapFrame won’t replace the timers and the shopping list. It does photos, a weather screen, and a bin-collection reminder - that’s the lot.
For a kitchen tablet the usual setup is a Home Assistant dashboard in a kiosk browser, where you can put a timer helper and a to-do list on screen, and SnapFrame as the thing it falls back to when nobody’s using it.
The display side is just a fullscreen web page, so an Android tablet is no problem at all - old iPad Safari was the hard part, Android browsers are easy in comparison.