Hello there, I've been looking into figuring out how to log in to a service without having to ask for an email/password combo. Given that there's no WebViews at the moment logging in via Twitter/FB does not seem to be an option for our application. Thus I would like to ask for people to use their login credentials via the iOS app. It feels like a lot of the advice on app groups is around sharing data, quite resonably, expects you to have the apps same device.Is the recommended route to share authentication via app groups + nsuserdefaults/shared keychain? Or to try build your own over CoreBluetooth?
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