Developer setting. If there is an opportunity to set, how to delete?
what is password?
Is that really works?
Does not work outside China. The iphone app wants you to log into the "iTunes store" (What's that?) but if you, for example, try to log on using Apple ID, nothing happens.
How to download itools ipa
You can get more reference to this book: selfie camera Website to know more about the Photos app