# One Line: Number Path Puzzle — A fair daily one-stroke puzzle

> A fair daily one-stroke puzzle (iPhone/iPad app by torankirite.)

- Source: https://appshunter.io/ios/app/one-line-number-path-puzzle/id6787843651 (this page in markdown: same URL + `.md`)
- Developer: [torankirite](https://appshunter.io/developer/1883564850)
- Category: Games, Education, Board, Puzzle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: American English, Japanese
- Released: 2026-07-09
- Data updated: 2026-08-02
- User reviews in markdown: https://appshunter.io/ios/app/one-line-number-path-puzzle/id6787843651/reviews.md

## What is One Line?

One line. Every square.
A clean, surprisingly deep one-stroke puzzle: just trace the numbers in order, 1 → 2 → 3.
A fresh “daily puzzle” turns spare minutes into the perfect little brain break.

■ Simple to play
- Start your line at ①
- Pass the numbers in order: ① → ② → ③ …
- Cover every open square exactly once (dark blocks are walls)
- Finish on the last number. Just drag — rub back to erase

■ Why you’ll like it
- Always fair: every board is checked by a real solver, so there’s exactly one solution — never guesswork
- Endless: auto-generated boards, so no two puzzles feel the same
- Four difficulties: gentle 6×6, 7×7, hard 8×8, and a fiendish 8×8
- Track progress: clears, streak, best times, no-hint rate
- Works offline

■ Made for you if…
- You want a quick, satisfying “solved!” in a spare moment
- You love logic puzzles but hate unfair, ambiguous ones
- You’d like a small daily habit to keep your mind moving
- You appreciate a clean, grown-up design

■ Private by design
- No account, no sign-in
- Your stats stay on your device — nothing is sent to a server

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Premium | $4.99 | one-time |



## Version history (last 2 releases)

### 1.1 — 2026-08-01

Stability improvements and overall performance optimizations.

### 1.0 — 2026-07-09

No release notes.

## More apps by torankirite

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- [ためブタ](https://appshunter.io/ios/app/id6760604349)

All apps by torankirite: https://appshunter.io/developer/1883564850

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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 2026-08-02.*