Dev should be ashamed.

How lazy can a developer be. Release an update that only works with the new OS and not implement Apples system of recognizing the old system and installing the appropriate version. Its too bad the product is actually good, unfortunately theyve ignored existing customers and updated a working version on an OS that they knew would not work. Based on this example I will not recommend or purchase another App from this Dev until they do whats right.

Alien Invaders 2 about Attractor, v3.0