Typically, the app needs to ask for permissions like that, though. On Android, they need to ask to become a “Device admin”, and they need to specify what specifically they’ll use that access for. I imagine (though I’m unsure since it’s never happened to me) they need to ask to update those permissions if they want their uses to change.
Software is imperfect and you shouldn’t trust that future updates will not add that ability.
Typically, the app needs to ask for permissions like that, though. On Android, they need to ask to become a “Device admin”, and they need to specify what specifically they’ll use that access for. I imagine (though I’m unsure since it’s never happened to me) they need to ask to update those permissions if they want their uses to change.