Hi Wojtek
its hard to judge about the own work. But maybe it helps what others say.
Apple:
Customer Reviews
Finally a true submarine sim on iOS
by Gorfleck *****
If you are a fan of sub sims, this should be an instant purchase for you. The sim is missing some of the features you would have in a pc sim, such as manual targeting. However, this sim is light years ahead of anything else you will find on iOS. To me, this sim is reminiscent of Silent Service 2, and that's a good thing.
Love it
by 6484892746 *****
Still need to fix some bug issues. Would like to resume back to the game when you need to close the app for text or phone. Also some times when you go to the saved game it won't work multiple black screens. But I do enjoy the game. Glad I bought it
Android
Vol Dan *****
Real Subsim-Simulator! This is the most advanced and best Subsim-Simulator you can get on your smartphone! It has the real silent hunter spirit! Well done guys!
Check It also on toucharcade a very big apple game community
http://forums.toucharcade.com/showthread.php?t=298234