Replacment UDID with OpenUDID is this good way?

Question

So apple is rejecting apps which uses UDID. There are lots of posts on this, but i can't find where is written is it's good to use OpenUDID.

So maybe someone know if apple will approve this ? If OpenUDID has all features as UDID ?

Maybe someone is using this approach and could explain more ?

Answer 1

Seems like the easiest solution is to just generate your own UUID:

NSString *UUID() {
    CFUUIDRef cfuuid = CFUUIDCreate(NULL); 
    NSString *uuid =  (__bridge_transfer NSString *)CFUUIDCreateString(NULL, cfuuid); 
    CFRelease(cfuuid);
    return uuid;
}

If you need to keep this across uninstall/install cycles, put it in the keychain as described here: https://stackoverflow.com/a/11597291/382374

Best thing, this is how Apple suggests you do it.

Good luck!

Answer 2

We create our own UDIDs based on a hash of the device MAC address and the bundle identifier. This ensures that we can uniquely identify our app on a specific device.

You could also create a hash based only on the MAC address if you need a unique ID across multiple apps.

I've actually written a blog post about how to do this and provided some sample code here:

https://radeeccles.com/blog/create-your-own-unique-device-identifier-udid