IDFA/GAID letter case

Question

Is there a standard/convention regarding the letter case of IDFA (Identifier for Advertising) and GAID (Google Advertising ID)?

I couldn't find anything conclusive about this. Links to relevant documents will be appreciated.

score 5 · Answer 1 · answered Apr 04 '16 at 09:51

It seems from the examples in Advertising ID Documentation that GAID is stored lowercase, the last example also shows a wrapper class which might mean you don't have to worry about this.

With regards to the Apple version I could not see any examples in their own documentation, but the example shown on Possible Mobile's article on Unique Identifiers shows it in Uppercase. I don't know the site to say whether thats actually a reliable source. Like Android, Apple has some wrapper classes which seem to provide the ID to you so you again might not need to worry about formatting.

score 3 · Answer 2 · answered Mar 30 '16 at 19:38

3

From what I've seen, IDFA is uppercase and GAID is lower case. Sorry, no links.

answered Mar 30 '16 at 19:38

Joe Abrams

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This is a rubbish answer – James Feb 14 '19 at 08:27

score 1 · Answer 3 · answered Oct 06 '20 at 12:38

1

From what I have seen IDFA is always in Upper case and GAID is in small case

answered Oct 06 '20 at 12:38

Harsh Gupta

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Relevant links would make this answer great! – Kanak Sony Oct 06 '20 at 12:58

score 0 · Answer 4 · answered Feb 14 '19 at 08:26

They are not case sensitive and any company who treats them as such is doomed to have a terrible time. UUIDs are numbers, no more no less.

You cannot deduce the OS from the cased-ness of the IFA. Think about it... this would mean there can only ever be two mobile device operating systems ever.

IDFA/GAID letter case

4 Answers4