iOS 7-iOS 9 – Fake Call-Prank Caller ID Apps Review

I'm 12 years old and 2years ago I had an iPhone 4 and I downloaded this app and it worked perfectly but one problem now I have an iPhone 4s and my carrier is AT&T so I actually now have a real phone number however I used to love this app so I downloaded it again and it crashed now I don't know if it's because of the update to iOS 9 but please fix it!
Review by Gmod Guys on Fake Call-Prank Caller ID Apps.