Since iOS 8 apps can share data on device through so called App Groups if they are published with the same bundle identifier prefix. For that to happen I believ

Since iOS 8 apps can share data on device through so called App Groups if they are published with the same bundle identifier prefix. For that to happen I believe they have to be published by the same developer account. Here is a link about this in the context of sharing data between apps and app extensions: https://developer.apple.com/library/content/documentation/General/Conceptual/ExtensibilityPG/ExtensionScenarios.html https://developer.apple.com/library/content/documentation/Ge...