On the surface, compared to Android, iOS is much more secure. It seems they ensure app sandbox is not violated by any app developer. No app can steal another ap

On the surface, compared to Android, iOS is much more secure. It seems they ensure app sandbox is not violated by any app developer. No app can steal another apps data. You can prevent/revoke access to contacts, photos, sms, location, background execution, mobile data to any app from a central place. They allow 3rd-party apps for doing messaging (replaces iMessage), cloud storage (replaces icloud), firefox (replaces safari), 1password (replaces keychain) – all in a clean and easy way – with no ambiguity or confusion. But w.r.t end to end encryption claims, we just take them at their word. There is no formal verifiable proof. Recently we have repeatedly learnt the hard way to not trust corporations at they word. Without open-source and peer-reviewed cryptographic protocols and verifiable trusted execution models, it is not safe to believe it is truly end to end encrypted and nobody is spying.