Screw Sort: Nut & Bolt Puzzle
300 sort puzzles, all winnable
Free · Designed for iPad. Not verified for macOS.
Every one of the 300 levels was solved by the game before it shipped, so no board you are handed is a dead end. Free, offline, no timer, no lives.
Unscrew, sort, and clear the board. Screw Sort is a calm nuts-and-bolts puzzle with 300
handcrafted levels — and every single one is guaranteed to have a solution.
HOW IT PLAYS
Tap a holder and the top run of matching screws lifts out. Tap another holder and they land.
Fill a holder with a single colour and it locks in, finished. Clear the board to win.
That is the whole rule set. The first level teaches it in seven moves. Level 300 will not.
EVERY LEVEL IS PROVABLY SOLVABLE
Most sorting puzzles shuffle the board at random and hope. A random deal of screws can look
completely normal and still be impossible — every holder jammed with mixed colours and nowhere
left to move. You only find out after ten minutes of trying.
Screw Sort does not shuffle and hope. Every level was solved by the game itself before it
shipped, and the length of that solution became the level's par. So the three-star target is
not a guess either — it is a route that is known to exist. If you match it, you found the
best line.
NO INTERNET NEEDED
All 300 levels ship inside the app. No download on first run, no server, no account, no
sign-up. It works on a plane, on the Tube, and on a dead SIM.
FEATURES
- 300 levels across chapters that tighten as you go
- A fresh Daily Challenge every day, with a streak to keep
- Three stars per level, measured against a solution that is proven optimal
- Undo any move, and a hint when a board stops making sense
- An extra holder when you are genuinely stuck
- No timer and no lives — think for as long as you want
- Plays entirely offline
WHO IT IS FOR
If you like Water Sort, Ball Sort, Hoop Sort or Nuts and Bolts puzzles, this is the same itch
with tighter levels and no dead ends. If you have ever restarted a sort puzzle wondering whether
it was ever winnable at all — this one always was.
Free to play, with optional ads to earn hints and extra holders.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, BEK Service LTD, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- BEK Service LTD
- Size
- 60.1 MB
- Category
- Puzzle
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © 2026 BEK Service LTD