On Android, IIRC I've seen a dialer app that stores contacts in its own database instead of the system thing. Seems to be a better approach than this—at least i

On Android, IIRC I've seen a dialer app that stores contacts in its own database instead of the system thing. Seems to be a better approach than this—at least if other apps also don't write to the shared contacts. (It was probably an open-source dialer on F-Droid, but don't remember exactly which one.) Anyway, an even better approach of course is to tell data-slurping apps to bugger off. Edit: come to think of it, maybe alternative Android ROMs could fence the contacts so that an app only sees its own unless the user specifically selects someone. I guess this is similar to Apple's trick with Photos.