Coming soon to iPhone

Slide your way
to calm.

The timeless sliding tile puzzle, reimagined with springy physics, satisfying haptics, and a fresh shuffle every day.

One email at launch. No spam, no resale.

Coming soon to
App Store · iPhone
Thunk numbers tile puzzle on iPhone
Three grid sizes

Easy to learn. Stubborn to master.

3 × 3Warm-up

8 tiles. A quick brain reset.

4 × 4Classic

15 tiles. The one you grew up with.

5 × 5Expert

24 tiles. For long quiet mornings.

Features

Built to be the one you keep on your home screen.

Three difficulties

Pick your size: 3×3, 4×4, or 5×5. Different headspace for every moment.

Move counter & timer

Beat your own best. Quietly, in the corner — no leaderboards screaming at you.

Daily puzzle

A new shuffle every day, the same for everyone. Compare with a friend.

Haptic feedback

Every slide feels real. Tuned for the Taptic Engine.

Stats & streaks

Solves, average time, current streak. Just enough numbers to feel proud.

No ads, no accounts

Just the puzzle. Free forever. Your data stays on your phone.

Personalize

Make it yours.

Six tile themes to match your mood. Or skip the numbers entirely and slide your own photos into place.

Tile themes

Sunset
8
2
7
4
6
5
1
3

Your camera roll

Pick any shot. Thunk slices it into a puzzle you can actually solve — a coffee, a sunset, the dog.

Photo turned into a 4x4 sliding puzzle
Coming with the iPhone launch
How it works

One tile at a time.

  1. 1

    Tap a tile next to the empty slot.

    Or tap any tile in the same row or column — the whole row slides at once.

  2. 2

    It slides into place.

    Springy, satisfying, and grounded by a tiny haptic thunk.

  3. 3

    Arrange 1 → N. Blank in the bottom-right.

    When the numbers line up, the puzzle gently celebrates with you.

Live demo · 3 × 3

Why sliding puzzles?

“There is something quietly meditative about pushing fifteen stubborn little tiles into order — a small, finite world you can actually finish.”

No timer pressure. No infinite scroll. Just one shape becoming whole, and a satisfying thunk when it does.

FAQ

Questions, answered.

Yes. Free forever, no in-app purchases, no ads.

We're polishing the last few details. Join the waitlist and you'll be the first to know.

Not at launch — we want the iPhone version to feel perfect first. We'll revisit after.

No accounts, no signups, no email required to play. Your stats live on your device.

Yes. Once installed, Thunk runs entirely on your phone. Daily puzzles cache when you have signal.

A seeded shuffle so everyone on the same day gets the same starting board, regardless of grid size.

Be early

Be first to slide.

Join the waitlist — we'll send a single email the day Thunk lands on the App Store.

One email at launch. No spam, no resale.

Coming soon to
App Store · iPhone