Slitherlink – Logic Puzzle
Daily loop & brain game
Free · Designed for iPad. Not verified for macOS.
The numbers are hints; the answer is a single closed loop. A calm, pen-on-paper logic puzzle — with a fresh daily puzzle to keep your streak alive.
Slitherlink, the classic logic puzzle — drawn like pen on paper.
The rules are simple. Each number counts the lines surrounding its cell. Satisfy every number while drawing one single closed loop — no branches, no crossings — and the puzzle is complete. It looks easy, and then the logic gets delicious.
Every puzzle has exactly one solution. Guessing is never required: every generated puzzle is mathematically verified to have a unique answer. Difficulty names mean something here, too — we measure the depth of reasoning each puzzle actually needs, and only serve ones that earn their label.
■ Features
• New to Slitherlink? A hands-on tutorial teaches the rules on a tiny practice board • Four difficulties — from Easy 5×5 to Expert 12×12 • Daily Puzzle — the same board for everyone each day, with an attendance calendar and streaks • Paper-quiet design — an ink-and-paper ledger look, in light and dark • Comfortable controls — tap to draw, long-press to mark ×, drag along the dots • Room for big boards — pinch to zoom, two-finger pan, iPad and Apple Pencil support • Mistake-proof — unlimited undo/redo and automatic saving • Track your progress — best and average times per difficulty
For the moments you want quiet focus, one board of Slitherlink is enough.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Byeongjin Lee, 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
- Byeongjin Lee
- Size
- 15.7 MB
- Category
- Puzzle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Korean
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © 2026 Meuse Co.