Sell you a better board.
Pieces are locked by a seed the moment a run begins, and every run shows its seed. Nothing you watch or buy changes the board.
Hide the difficulty.
The rules are the same for every player. Every Koi Sort level is checked by a solver before you see it, and every Pondiful Journey level is tested to be winnable.
Sell koi.
Every koi is earned by playing, and so is every bowl in Koi Sort. There's no buying your way to the rare ones.
Bury the "No thanks".
Watching an ad for a reward is always your choice, and saying no is always one tap. In both games, Remove Ads is a single purchase.
Rush you.
Neither game has a timer or lives to wait for, and Pondiful's Zen mode has no game over at all. Put the phone down whenever you like.
Leave people out.
Pondiful has tile symbols, large tiles, a left-handed layout and a reduce-motion option. In Koi Sort every colour has its own shape. Both speak eight languages.