LOOP: Slitherlink Puzzle

Connect the dots into a single closed loop, using only the numbers as clues.
LOOP is a calm, focused logic puzzle for a quiet moment of your day.
New to it? The app coaches you one move at a time, so you can start today.

LOOP is a Slitherlink puzzle, also known as Fences or Loopy. Each number tells you how many of that cell's four sides belong to the loop. Follow the numbers and draw one unbroken loop with no branches.

■ PLAY WITH PEACE OF MIND
- Free to start. No subscription
- No third-party ads (only promotions for the developer's own apps)
- Your records stay on your device

■ WHY YOU'LL LIKE LOOP
- Every puzzle has exactly one solution. No ambiguous boards
- Easy and Medium can be solved by pure logic, with no guessing
- Four levels: Easy, Medium, Hard, Expert
- A daily challenge and a streak that grows
- A guided how-to walks you through your very first puzzle
- Practice mode explains the next move and why it works
- Achievements that grow as you play
- Undo and redo, pinch to zoom, and drag to draw lines
- Stats: puzzles solved, streak, no-hint rate, total play time, and solved / best / average per level
- Made for iPhone and iPad, in English and Japanese, with Dark Mode support

■ GREAT FOR
- Fans of Slitherlink and other pencil puzzles
- Sudoku players looking for their next logic challenge
- Anyone who wants a quiet break to focus
- Beginners who want to learn the techniques step by step

■ PRIVACY AND SAFETY
- Puzzles work without an internet connection
- No account and no personal information
- The app reads public App Store information only to show the developer's other apps