Sync vs P=NP
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Sync
Engage your mind with a unique puzzle experience where you guide synchronized balls to designated holes using simple swipes. Navigate through increasingly complex mazes, strategically using walls to achieve your goals. Enjoy a tranquil yet stimulating challenge with 80 levels, designed for thoughtful problem-solving without time pressure.
- Swipe to move synchronized balls
- Align balls into holes
- Use maze walls for strategy
- Avoid falling off the platform
- Progress through 80 levels
- No time limits or scores
- Develop concentration and problem-solving skills
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Greetings 21st Century Earthlings! Transport your mind beyond earthly concerns with the engaging puzzle experience of Sync-Ball. Gently swipe your finger on the screen to move the synchronized balls up, down, left and right. Your goal is to align the balls and drop them into the holes on the same swipe. • Use maze walls to block movement and align the balls to achieve your goal. • Watch-out for the edges! If you roll a ball off the platform, you'll have to start over. • Begin with two-ball puzzles and simple mazes that teach the game's elegant mechanics and strategies. • Advance to more complex puzzles with up to four synchronized balls in play at one time. And you thought rocket science was tough! • Experience 80 levels of stellar satisfaction. Do you long to escape the frenzied pace of modern life? Sync-Ball was designed to provide the perfect balance of tranquility and cerebral stimulation for a quick escape wherever and whenever you need one. • No time limits mean you can ponder a puzzle for as long as you like without incurring a penalty. • No scores artificially inflate your sense of panic. • Progress at your own pace. • Reset a stage as often as you like. • Concentration, memory and problem-solving skills are all you need. Have fun!
P=NP
Connect dots to find the shortest path in a puzzle game where the world wraps around. Use hints to guide your progress or purchase them to extend your gameplay. Unlock new challenges by completing levels.
- Dot-connecting puzzles
- Wrapping world mechanic
- Hint system
- In-app shop for hints
- Unlockable random puzzles
- Device-adaptive puzzles
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Connect the dots and find the shortest route! But beware, the world wraps in both directions. Wisely move the screen to solve the puzzle. Stuck? Use hints to highlight the correct parts of your best attempt. A hint remains active until you improve your best route. Win hints by completing puzzles or buy them directly in the in-app shop. For each level, from 3 to 35 points, complete puzzles A to Z to unlock the random puzzle and thus extend your experience indefinitely. Note that the puzzles are defined by the proportions of the screen: thus they can vary depending on the device. P=NP is a free-to-play game and contains ads. It is possible to remove ads with an in-app purchase. Other in-app purchases enable you to get additional hints. Payment functionality can be disabled in the settings of your device. Concept, design, development and music: Ken L'Héritier
Screenshots
Verdict
The clearest difference is price: P=NP at Free against Sync's $0.99. P=NP also leads on rating (5.0 vs 4.8). Sync's advantage is in-app purchases (none vs 6) and ads (none vs shown). On review sentiment, update cadence, 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
P=NP is free to download; Sync costs $0.99 up front. P=NP sells 6 one-off in-app purchases. Sync asks for nothing beyond the download.
P=NP holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Sync has 33 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 97% of Sync's written reviews are positive against 100% of P=NP's.
Sync ships an update every 40 months, P=NP every 28 months. The most recent releases landed on September 10, 2026 and June 2, 2026 respectively.
| Parameter | Sync | P=NP |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.8 (33 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 96.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 33 — better | 3 |
| Update frequency | Every 40 months | Every 28 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 9 MB | 74 MB |
| Age rating | 4+ | 4+ |
| Developer | Tozai, Inc. | Ken L'Heritier |
Customer experience
Sync
P=NP
In-app purchases
Sync
No in-app purchases
P=NP
- 10 hints$0.99
- Remove ads$1.99
- 50 hints$3.99
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- 120 hints$8.99
- 250 hints$16.99
- Unlimited hints$42.99
