Unknot vs Saku
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Unknot
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Unknot is a uniquely relaxing yet brain-teasing puzzle experience designed to be both intuitive and satisfying. With no distractions, your only focus is the tangled knots before you. Simply drag vertices on the screen, align them strategically, and watch them pop as the knots unravel. At first, the puzzles may seem simple, but don’t let their ease fool you. As you progress, the knots grow more intricate, requiring patience, skill, and clever problem-solving. The final levels will test your ability to think ahead, refine strategies, and embrace the satisfying rhythm of untangling chaos. Intuitive controls: Just drag and align—no unnecessary distractions. Deeply satisfying mechanics: Popping vertices brings a sense of accomplishment. Relaxing yet challenging: A balance between calm gameplay and stimulating difficulty. Gradual difficulty curve: Early levels ease you in, while later ones demand experience and strategy. Time tracking, but no pressure: Levels have no completion timer, but your best time is recorded. Replay any level to beat your personal record—or simply take your time and explore at your own pace. Are you ready to unknot the toughest puzzles? Dive in and discover the joy of untangling! Download now and unknot your first puzzle!
Saku
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Saku is the calm, honest nonogram — a picture-logic puzzle (also called Picture Cross or Griddlers) with none of the noise. No lives, no energy, no timers. Every puzzle is uniquely solvable by pure logic — never by guessing — so a solve always feels earned, and the hidden picture blooms when you finish. • Five sizes, from a quick 5×5 to a deep 20×20 • A Daily puzzle — the same one for everyone, worldwide • True-black OLED night mode, gentle on tired eyes • Tactile fill-and-cross with soft haptics • A kind hint that only ever reveals a logically forced move • Puzzles play offline. No account. Only the ads need a connection. One quiet Studio Unlock — paid once, yours forever — opens extra ink-and-paper palettes, removes the ads, and supports a tiny independent studio. The puzzles stay free. Made with care by Erek Studio.
Screenshots
Verdict
The clearest difference is in-app purchases: Unknot at none against Saku's 1. Unknot also leads on update cadence (every 6 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Saku sells 1 one-off in-app purchase. Unknot asks for nothing beyond the download.
Unknot ships an update every 6 days, Saku every 2 weeks. The most recent releases landed on September 16, 2026 and September 22, 2026 respectively.
| Parameter | Unknot | Saku |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 days — better | Every 2 weeks |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.2 — better | 13.0 |
| Further details — not scored | ||
| Size | 18 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | LELEU LABS LLC | Mustafa Salim Erek |
In-app purchases
Unknot
No in-app purchases
Saku
- Studio Unlock$3.99









