PrimePop vs Lettract

Tap. Add. Pop. Find the primes! PrimePop is a bubble-popping math puzzle with satisfying pop effects and a brain-teasing challenge that gets harder every round. HOW TO PLAY Select bubbles whose numbers add or subtract to make a prime number. Pop primes to hit the target score and level up - but choose carefully: wrong combos cost a life! FEATURES - Levels that grow trickier as you go - how far can you get? - Earn up to 3 stars on every level and beat your best time - Three beautiful themes: Lagoon, Aurora, and Starlight - Earn bonus lives as you progress - Glassy bubbles, juicy pop effects, and cheerful music - Learn it in one minute with the built-in tutorial - Play offline - no internet needed Simple to learn. Tricky to master. Impossible to put down. From QratedSoul LLC

Lettract is a relaxed word puzzle: letters arrive as soft bubbles, you draw a path through them to spell real words, and every good word clears space so you can breathe again. What you’ll find Straightforward rules—connect letters, submit a valid word, feel the payoff Adventure for structured levels, Endless when you want to zone out, Marathon when you’re ready to chase a streak Hints and clear goals when you want a nudge, not a lecture Sessions that fit a coffee break or a long unwind—your pace No timer yelling at you. No clutter. Just letters, words, and a little quiet focus.