Updates

I had an app that I paid for, when an update came up apple wouldnt let me update. The list where all the apps that can receive updates, it wasnt on it. Neither is this one, I just purchased the camera. Now I am wondering if I made a mistake. The other editing app that I had bought, had to delete it, couldnt update it.

Cab 99 about ProCamera. Professional Camera, v9.3