Can a custom keyboard extension identify a user of my companion application in any way?

Question

Can a custom keyboard app extension detect a specific user’s identity based on settings/credentials/identification mechanism in the companion app or otherwise? By "identifying a specific user", I mean in the context of my own application/service/brand, not personal/phone data on their device.

Or is it always a static keyboard, always unable to determine the user/phone using it?

Probably because you're asking to uniquely identify a user, which Apple has gone to great lengths to prevent. — Hyperbole, Jul 25 '14 at 13:58
Down votes and up votes are supposed to be based on the quality of the question, not on the morality of what the person asking the question is trying to achieve. — John Topley, Jul 25 '14 at 14:05
I agree. I personally didn't provide any votes in either direction. — Hyperbole, Jul 25 '14 at 14:07

score 1 · Accepted Answer · answered Aug 23 '14 at 08:47

1

I think you should be able to. In your companion app, put whatever identifier you want in the NSUserDefaults, and let the keyboard pick that stuff up in its viewDidLoad of its UIInputViewController subclass.

Let me know if that works.

answered Aug 23 '14 at 08:47

Rikkles

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score -1 · Answer 2 · answered Jul 25 '14 at 14:10

-1

No; this is prohibited by Apple.

answered Jul 25 '14 at 14:10

John Topley

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Do you have a source specifically citing this? **Edited my question, thanks** – barfoon Jul 26 '14 at 14:52

Can a custom keyboard extension identify a user of my companion application in any way?

2 Answers2

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