Likely phishing attack – iOctocat - Mobile client for GitHub Review

Appears to be a phishing attack. Immediately after downloading and opening the app, I was presented with a pop-up. It said that it was missing an app receipt, and asked for Apple Store credentials so that it could properly handle updates in the future. It seems unlikely that this is an actual error from Apple. I tried re-downloading the app and opening it again, and I got the same error. Other apps that I downloaded had no problems starting up.
Review by Grayson FooBar on iOctocat - Mobile client for GitHub.