There is very little IPC that is allowed for apps that do not share a development team on iOS.

> There is very little IPC

I am not familiar with iOS internals, but does "very little IPC" mean "zero IPC"? Because if we are talking IPC in the context of bypassing permission checks, I imagine, 'very little' doesn't cut it?

What stops the app from opening a link in Safari to trackmyshit.com/uuid-uuid-uuid-uuid that closes itself.