Is it allowed to transfer iPhone UDID to my server?
iphone, udid
Solution
You are allowed to transfer a device's UDID to your servers. That's what it's intended for.
Problem
My app has a feature which requires identifying each app users. I'm planning making the app sends UDID to my server. Server stores it, for later use. I don't think that's a personal information, however, I want to know is it approvable or not in Apple's AppStore. And, including transferring phone numbers. In the case of WhatsApp, it recognizes my friends' numbers automatically. I think that's impossible without some kind of data transfer.