IMO the best org phone client is a VPS + CLI emacs + good mobile SSH client + syncthing. Requires connectivity but then I have e.g. org-agenda feature parity. I basically live in this setup. Surprisingly ergonomic to use with a touchscreen and phone keyboard.
If I have no connectivity, the last thing I want is to be editing my org files on yet another device and introducing conflicts. I use something like beorg (ios) for background-sync offline read-only access but don't use it to write offline.
If I have no connectivity, the last thing I want is to be editing my org files on yet another device and introducing conflicts. I use something like beorg (ios) for background-sync offline read-only access but don't use it to write offline.