Thanks for your feedback!
Noted about the UI!
Maybe I need to be clearer in the description & the rules of the game, because, as written in the description, "When you choose to increase a channel, this action is irreversible; that’s the “Double or Quit” point!"
About AI, I use a grammar corrector for my poor English in the description and to answer properly in the comment section, but that's it. I guess there is some AI in this corrector, but that's all.