Proton Pass for iOS is the official iPhone and iPad mobile client of Proton’s secure password manager, offering a privacy-first vault that stores login credentials, secure notes, and other private digital items with end-to-end encryption performed on the user’s device. Designed with native Swift interfaces, the iOS app fits naturally into Apple’s ecosystem, supporting iCloud keychain-style convenience features like autofill, Face ID/Touch ID security, and system integrations while maintaining strict separation between user plaintext and any remote services. ...