# Pencil Logic: Slitherlink — Masyu, Nurikabe, Hashi & more

> Masyu, Nurikabe, Hashi & more (iPhone/iPad app by Muhammad Arqam.)

- Source: https://appshunter.io/ios/app/pencil-logic-slitherlink/id6801484863 (this page in markdown: same URL + `.md`)
- Developer: [Muhammad Arqam](https://appshunter.io/developer/1845547957)
- Category: Games, Education, Family, Puzzle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 23 MB
- Languages: American English
- Released: 2026-09-08
- Data updated: 2026-09-08
- User reviews in markdown: https://appshunter.io/ios/app/pencil-logic-slitherlink/id6801484863/reviews.md

## What is Pencil Logic?

Pencil Logic is an offline collection of seven classic Japanese pencil-logic puzzles: Slitherlink, Masyu, Hashi (Hashiwokakero), Nurikabe, Futoshiki, Shikaku and Kakuro. Every board is generated on your device with a guaranteed unique solution, so there's always a fresh puzzle waiting, no wifi needed. Free to play with ads; a one-time purchase removes them for good.

SEVEN PUZZLES, ONE APP
• Slitherlink: draw one loop through the dots so each number says how many of its sides the loop uses.
• Masyu: draw one loop through every pearl, straight through white pearls, with a turn at black ones.
• Hashi (Hashiwokakero): connect every island with bridges matching its number, no crossings.
• Nurikabe: shade one connected wall so each number is an island of exactly that many cells.
• Futoshiki: fill the grid with 1 to n, obeying the greater-than signs between cells.
• Shikaku: cut the grid into rectangles, one per number, each of exactly that size.
• Kakuro: fill the white cells so every run adds up to its clue, no digit repeating in a run.

BUILT TO ACTUALLY PLAY
• Four difficulties per puzzle, Easy through Expert, so there's a fair board whether you're learning the rules or hunting a real challenge.
• Undo and redo, a mistake check, and a hint when you're stuck.
• Auto-save: close the app mid-puzzle and pick up exactly where you left off.
• Left-handed layout and haptics, your choice in Settings.
• Light and dark mode, matching your system automatically.

A DAILY CHALLENGE FOR EVERYONE
• One puzzle a day, the same board for every player, rotating through all seven mechanics.
• Build a streak and see your last seven days at a glance.

FREE TO PLAY, HONESTLY
• Play every puzzle and every difficulty for free, supported by ads between puzzles.
• The first hint on any board is always free.
• A one-time purchase removes ads completely and makes every hint free, no subscription.

No account, no sign-in, and no internet connection needed to play. Whether you know these puzzles by name already or you've never tried a Japanese logic puzzle before, Pencil Logic is built to teach the rules on the board itself and keep a fresh one ready every time you open it.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $6.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-09-08

No release notes.

## More apps by Muhammad Arqam

- [Talk Timer: Speech & Pitch](https://appshunter.io/ios/app/talk-timer-speech-and-pitch/id6753894482)
- [Recipe Basket: Cookbook](https://appshunter.io/ios/app/recipe-basket-cookbook/id6789055412)

All apps by Muhammad Arqam: https://appshunter.io/developer/1845547957

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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 2026-09-08.*