Weft: Thread Logic

Fill a hand loom with two threads: gold runs across a cell, indigo runs down it. Never three alike side by side, half and half in every row and column, and on Hard and Expert no two rows or columns alike. 280 looms, each with exactly one solution you can reach by logic alone – never a guess. When the loom is full, the cloth weaves itself.

Support

Found a bug, stuck on a purchase, or have an idea? Email [email protected] – please include your phone model and, for a puzzle question, the difficulty and level number.

Frequently asked questions

How do I play?

Tap a cell for gold, again for indigo, and a third time to empty it. Drag from a thread across empty cells to lay the same thread in all of them; drag from an empty cell to clear the cells you pass. Threads with a small knot were there from the start.

What are the marks beside the rows and columns?

They count what each line still needs: a dash for every gold thread, a bar for every indigo one. You can turn them off in Options.

I find the two colours hard to tell apart.

The threads differ in shape as well as colour: gold always runs across a cell and indigo always runs down it, so you can play by direction alone.

I bought a pack but the levels are still locked.

Open any locked level to get to the Purchases page and tap Restore Purchases. Make sure you are signed in to the store with the same Google or Apple account you used to buy it.

I got a new phone. Is my progress saved?

Purchases are tied to your store account and can be restored on any device. Your progress and best times are stored only on the phone you played on and are not synced.

Do I ever need to guess?

No. Every loom has exactly one solution and can be solved by logic. If you are stuck, the Hint button first shows where to look, then explains why, and only then makes the move.

What do the free and paid levels include?

All 40 Easy levels (including a five-level tutorial), a free daily puzzle and the first 10 levels of Medium, Hard and Expert are free. The rest come in one-time packs of 35 levels, or all at once. There are no ads, no subscriptions and no account.

What data does the app collect?

Only anonymous gameplay statistics and crash reports, and you can switch them off in Options – see the privacy policy.