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Apps on iOS are allowed to communicate and share data so long as they are published by the same developer.

• edanm 3y ago
  I didn't know that, can they share logins across apps? E.g. if I'm logged into Google Spreadsheets, am I also logged into Google Docs automatically?
  • shuckles 3y ago
    Yes all apps by the same developer have a shared container.
  • ahsteele 3y ago
    Yes, exactly.
  • deleted 3y ago
    [deleted]
  • alickz 3y ago
    See here for details: https://developer.apple.com/documentation/security/keychain_services/keychain_items/sharing_access_to_keychain_items_among_a_collection_of_apps https://developer.apple.com/documentation/security/keychain_...
• mulmen 3y ago
  On top of this keychain stores logins by domain. Even if an app is in a different developer’s container you can retrieve the credentials with just a couple taps.