Puzzle · Android

Every level has an answer.

Most sorting puzzles shuffle at random and hope. A random deal can look perfectly normal and still be impossible — and you only find out after ten minutes. Screw Sort solved all 300 of its levels before shipping them, so a board that looks hopeless never is.

Screw Sort

Tap a holder. The screws lift. Tap another. They land.

300 levels, all proven

Each level was solved by the game itself before it shipped. The length of that solution became par, so the three-star target is a route that is known to exist.

No dead ends

You can always finish from where you are. If it feels impossible, it is not — undo as far back as you like, or take a hint from the solution.

Works with no signal

All 300 levels are inside the app. No download on first run, no server, no account. It plays on a plane and on a dead SIM.

A puzzle a day

A fresh Daily Challenge every day, with a streak worth protecting and coins for finishing it.

No timer, no lives

Nothing counts down and nothing runs out. Put it down mid-level and the board is waiting exactly as you left it.

Nothing to sign in to

No account and no profile. Your progress stays on your phone and is never uploaded anywhere.

A look inside

A Screw Sort board mid-solve: five wooden holders with blue, gold and red screws, one holder completed and ticked

How it makes money

Screw Sort is free. It shows a short advert between some levels, and offers you a video you can choose to watch in exchange for a hint or an extra holder. Adverts never interrupt a level in progress, and the reward ones are always your decision. There are no in-app purchases and nothing is locked behind money.