OneTrail - Line Maze Puzzle
Trace every cell, one line
Free
One trail. Every cell. No shortcuts.
OneTrail is a quiet, focused puzzle about drawing a single unbroken line through every cell on the board. Start at the flag, end at the trophy, and pass through every numbered checkpoint in order along the way — but skip even one cell, and the trail isn't complete.
HOW TO PLAY
• Drag from cell to cell — you can only step to a cell next to your current one.
• Visit every single cell exactly once.
• Hit the numbered checkpoints in the right order.
• Made a wrong move? Tap any earlier point on your trail to instantly rewind — no penalty, no restart required.
100 LEVELS, A REAL CURVE
The first few levels ease you in on a small, open board. From there, grids grow larger and maze walls start appearing between cells, closing off shortcuts and forcing you to actually think several moves ahead. By the final levels you're tracing a full trail across a large, wall-filled maze with only a handful of checkpoints to guide you.
DESIGNED TO STAY OUT OF YOUR WAY
• No ads.
• No accounts or sign-in.
• No trackers, analytics, or data collection of any kind.
• Nothing to buy. Just the puzzle.
OneTrail is built for the moments you want your mind on one clean, solvable thing. Pick it up, trace the trail, put it down.
Ratings & Reviews
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Added Level Navigation
The developer, HALIL ESKICIOGLU, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- HALIL ESKICIOGLU
- Size
- 21.3 MB
- Category
- Puzzle
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Halil Eskicioğlu