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Zen String

A calm untangling puzzle

One tap at a time, the tangle becomes a loop.

Turn each tile until every strand agrees with its neighbour. No timer, no score, no way to fail, just a board that quietly tells you when it's right, and a colour palette that drifts forward each time it does.

Coming soon onApp Store Get it onGoogle Play
Free to play, permanently. See how →
Two Zen String rope tiles: one loop already connected top to bottom, another loop nearby not yet lined up with its neighbour

one tap, one turn, one connection

See it in action

A look inside

Seven Zen String boards on phones: square, hex, and diamond puzzles in lavender, blue, green, amber, and dark palettes

What it does

A small vocabulary, endlessly rearranged

A mood that evolves

Four gentle colour palettes drift forward on their own as you solve, never a picker to fuss over, just a quiet colour-therapy reward for finishing a board. It's the one thing the game changes without asking you to.

Square, Hex & Diamond

Three independent boards, each its own difficulty track. Switch shape any time and pick up exactly where you left off.

Wordless, unhurried

No timer, no score, no fail state. The only feedback is whether the strands agree, tile by tile, until they all do.

Arcs, crossings & junctions

The vocabulary grows with you: simple pass-throughs first, then true rope crossings, then branching junctions where a single strand fans out into two or three arcs.

How it works

Three steps, no menus

  1. 1

    Tap to turn

    Every tap rotates the nearest tile one step clockwise. Simple, predictable, always the same direction.

  2. 2

    Watch it agree

    Each shared edge lights up the moment it matches its neighbour, a small, honest signal, tile by tile.

  3. 3

    Let it bloom

    Once every edge agrees, the board settles with a soft colour bloom, and the mood steps gently forward for the next one.

Pricing

Free doesn't mean interrupted

Every shape, every level, every mood palette is free, permanently, not a trial. A small bank of free hints gets you unstuck early on; after that, one short optional ad reveals another, always your choice, never forced. Occasional ads may appear between puzzles once you've played a while, never mid-solve, and a one-off purchase turns them off completely, for good.

Privacy

Your boards stay on your phone

Zen String works fully offline, with no account and no login. Your progress, settings, and mood are stored only in a local save file on your device. The only outside services involved are an ad network, once ads are active, and the app store's own billing, only if you buy the ad-removal upgrade.

Read the full privacy policy →

Untangle something small today

Coming soon onApp Store Get it onGoogle Play