Open source apps are rare on iOS. But this is not even the app, it’s the backend server. There is literally only one instance. It’s as closed source as most websites.
In particular, you need to register with Apple for a developer license to even side-load apps onto the phone. So the only way an open source app can exist on the iPhone is if every end user pays Apple $99 dollars (Has this gone up? It has been >10 years since I even touched iOS dev).
IIRC Apple graciously allows you to sideload apps for free now, they just expire after a week or so making it so you have to constantly reinstall/resign them.
Open source apps are rare on iOS. But this is not even the app, it’s the backend server. There is literally only one instance. It’s as closed source as most websites.
In particular, you need to register with Apple for a developer license to even side-load apps onto the phone. So the only way an open source app can exist on the iPhone is if every end user pays Apple $99 dollars (Has this gone up? It has been >10 years since I even touched iOS dev).
IIRC Apple graciously allows you to sideload apps for free now, they just expire after a week or so making it so you have to constantly reinstall/resign them.