Trail by Franz Enzenhofer
One line through every tile
Free · Designed for iPad. Not verified for macOS.
Trail is a quiet logic puzzle about a single unbroken line. Start at the ring and draw one line that visits every tile on the board exactly once - no crossing, no doubling back, no tile left out.
Each level teaches one new idea and then folds it in with the rest: walls, arrows that force a direction, beamers that carry the line across the board, a flag that marks the end, ice you slide along, one-way doors, and keys that open locks.
Every board is generated, solved and difficulty-checked from its level number alone, so level 42 is the same puzzle for everyone, forever, and there is always a solution to find. Get stuck and the line simply unwinds itself - nothing is ever lost, and you can take as long as you like.
It runs fully offline, with no ads, no accounts and no purchases.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
A calmer start screen.
- It fits every phone, with nothing squeezed or cut off.
- The tip no longer makes the screen jump when it changes.
- The unexplained perfect count is gone: the level picker already shows how you played every level.
The developer, Franz Enzenhofer, 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 Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Franz Enzenhofer
- Size
- 1 MB
- Category
- Puzzle
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Franz Enzenhofer