does every iOS app has it's own single keychain on device?

Question

I'm really confused and hence asking this - does every iOS app has it's own keychain on device(iPhone) or there is only one keychain on device (iPhone) which is used by the different apps ?

Thanks

Answer 1

As mentioned in Apple docs. For the iPhone, there is only one keychain and apps can store their keychain items in it.

In iOS, apps have access to a single keychain (which logically encompasses the iCloud keychain). This keychain is automatically unlocked when the user unlocks the device and then locked when the device is locked. An app can access only its own keychain items, or those shared with a group to which the app belongs. It can't manage the keychain container itself.

Reference: https://developer.apple.com/documentation/security/keychain_services/keychains