Tumbletub app icon Tumbletub

A bath-toy physics puzzle for iPhone

Plan the fizz. Wait for the plop.

Place numbered fizz balls on bath toys, press Fizz!, and let the foam push every toy into the water. Nothing moves until you are ready, so take as long as you like to plan.

96 calm levels. The first 24 are free.

Coming soon to the App Store

Email me at launch

Opens your email app. Send it, and we will write back when Tumbletub is on the App Store. No sign-up form, no mailing list.

Tired of puzzle games that stop you for an ad or make you wait to play again?

Tumbletub home screen: the Bathtub room with its 24-level grid, three more rooms and a Run the bath button
Four rooms, 24 levels each
Kitchen Sink level 3-11: two rubber ducks on a teak shelf and a sponge on the counter, with fizz balls 1 and 2 placed beside them above a basin of water, and the Fizz! button below
Kitchen Sink, level 3-11

How it plays

Each level is a still life of bath toys on teak shelves above the water. You get a few fizz balls and one plan.

  1. Place

    Tap a glowing ring on a bath toy to place a numbered fizz ball. Place one, or several.

  2. Fizz!

    Press Fizz! The balls pop in number order, and the foam pushes everything nearby away from each ball.

  3. Plop

    Get every toy into the water. Anything that lands on the floor loses the level, and a piece marked with a crossed-out drop must stay dry.

Start over is always free. Rewind (undo the last Fizz!) and Extra Fizz (one more ball) are earned by clearing levels 6, 12, 18 and 24 of a room for the first time.

Fair by design

You pay once for the rooms you want, and that is the whole deal.

  • Helpers are earned, not sold. Rewind and Extra Fizz come from clearing levels, never from the Shop.
  • Progress stays on your iPhone. It is saved on the device only, with no account behind it.
  • Bathtub24 levelsFree
  • Laundry Room24 levels$1.99
  • Kitchen Sink24 levels$1.99
  • Garden Pool24 levels$1.99
  • Whole HouseAll 3 paid rooms, save $1.98. Only before you buy any room.$3.99

One-time purchases, no subscriptions. Restore them any time from Settings or the Shop. The App Store shows prices in your own currency.

Be there on launch day

Tumbletub is coming soon to the App Store for iPhone. The Bathtub and its 24 levels are free from day one.

Email me at launch