# Slitherlink – Loop Puzzle — One loop · daily · offline

> One loop · daily · offline (iPhone/iPad app by Byeongjin Lee.)

- Source: https://appshunter.io/ios/app/slitherlink-loop-puzzle/id6797521877 (this page in markdown: same URL + `.md`)
- Developer: [Byeongjin Lee](https://appshunter.io/developer/1448019552)
- Category: Games, Entertainment, Board, Puzzle
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 16 MB
- Languages: American English, Japanese, Korean
- Released: 2026-08-05
- Data updated: 2026-09-03
- User reviews in markdown: https://appshunter.io/ios/app/slitherlink-loop-puzzle/id6797521877/reviews.md

## What is Slitherlink?

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.


## Version history (last 5 releases)

### 0.1.7 — 2026-08-26

• Updated internal libraries

### 0.1.6 — 2026-08-17

Tidier settings — options are grouped so they're easier to find, and the how-to-play list now matches the tutorial.

### 0.1.5 — 2026-08-13

Better puzzles. The loop now reaches every part of the board, so you won't find corners filled with nothing but 0s.

### 0.1.4 — 2026-08-11

× marks no longer disappear by accident — long-press to remove one. Refined the board frame and touch feedback.

### 0.1.2 — 2026-08-10

• Privacy policy now available from Settings
• Updated libraries for a more stable experience

## More apps by Byeongjin Lee

- [Crypto Coin Mining Monitor](https://appshunter.io/ios/app/crypto-coin-mining-monitor/id6443868858)
- [Currencies – Converter & Rates](https://appshunter.io/ios/app/currencies-converter-and-rates/id6464373048)
- [오상 - 오늘의 상품권 OSANG](https://appshunter.io/ios/app/osang/id6747658431)
- [리얼티 - 부동산 계산 및 관리 REALTY](https://appshunter.io/ios/app/realty/id6756365873)

All apps by Byeongjin Lee: https://appshunter.io/developer/1448019552

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-03.*