This addictive puzzle game challenges you to fill all the squares on the screen in a single stroke without lifting your finger. With over 200,000 levels, it offers endless brain-teasing fun for players of all ages.






244+ iOS apps & games curated and reviewed
Every iPhone needs a few good fill line puzzle apps and games. We benchmark 244+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 4.0★ (64) | Yes | Yes | Oct 2026 | ||
| 2 | Free | 4.7★ (7.2K) | Yes | Yes | Oct 2026 | ||
| 3 | Free | 4.6★ (40K) | Yes | Yes | Oct 2026 | ||
| 4 | Free | 4.6★ (3.2K) | No | Yes | Oct 2026 | ||
| 5 | Free | — | No | No | May 2026 | ||
| 6 | Free | 4.6★ (382K) | Yes | Yes | Oct 2026 | ||
| 7 | Free | — | Yes | No | May 2026 | ||
| 8 | Free | — | Yes | No | Sep 2026 |






This addictive puzzle game challenges you to fill all the squares on the screen in a single stroke without lifting your finger. With over 200,000 levels, it offers endless brain-teasing fun for players of all ages.






Challenge your mind with a single line puzzle game. Fill all blocks in one continuous path without lifting your finger or retracing steps. Enjoy increasing difficulty and strategic gameplay without timers.




Engage in a free, addictive one-line puzzle game designed to sharpen your mind. Fill all blocks using a single continuous line. With 2,000 puzzles across four difficulty levels, it's perfect for brain training during commutes or downtime.