Sweet news. I feel bad, I only just received the mail hours earlier. Didn't really play a part in the beta testing
I just played a couple rounds, and I have to say that this is a really solid puzzle game. That being said, I did have a little trouble on my first game, I didn't really understand what I was doing until around the end of my first game. But once I caught on, the game became a lot of fun. One suggestion would be a mode where there is a prearranged stack group of boxes, and you have a limited number of turns to clear the whole screen. Kind of like the "Puzzle Mode" of Tetris Attack.
Don't worry, I do value every feedback from player. Although in the version sent to you, the in-game feedback button has been removed. In fact, it's almost same as the build submitted to the App Store. But you are always more than welcome to post your feedbacks here or just directly reply the TestFlight distribution email. Again thank you very much for your support.
The game has passed review, it is available on the App Store now. Launch celebration, 50% off! I will soon send promo code to all the beta test participants. Thank you all for your help.