I built playzipgame as a no-pressure way to play Zip. The daily board is the real official puzzle, and there are 50 curated practice levels with no countdown, no points and no download. What I like most is that practice best times save automatically, so progress is visible without competing against a timer.

If you like number-path logic puzzles, give playzipgame a try: https://playzipgame.com/