Kotoro vs Polyx 2D
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Kotoro
An atmospheric puzzle game where you mix colors to achieve target hues. Explore 8 chapters and 96 unique challenges based on fundamental color theory principles. Enjoy a relaxing experience with a beautiful soundtrack and minimalist design.
- Color mixing puzzles
- 8 chapters with unique mechanics
- 96 challenging levels
- Atmospheric soundtrack
- Minimalist and dreamy visuals
- iCloud progress sync
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"The visuals in Kotoro are simply beautiful." - AppAdvice "Based on a simple but effective principle." - MacGeneration "Something different to do at every turn." - 148Apps Featured by Apple as one of the Best New Games Kotoro is the first atmospheric puzzle game about color mixing based on the rules we all learn as children. Your objective is simple: Become a certain color by mixing with others. - 8 Chapters, 96 puzzles: Each chapter explores a new idea such as subtraction, replication or time - No Ads. No In-App Purchases. - Atmospheric soundtrack powered by 7 talented musicians from around the world - Fully localized for French, Chinese, Japanese and Spanish - Sync your game progress with iCloud - Minimalist, dreamy and beautiful - Ambient and relaxing experience
Polyx 2D
A classic falling block puzzle game with 35 unique shapes and 18 challenging levels. Compete solo or challenge friends in real-time online battles with customizable controls and visual styles. Unlock achievements and climb leaderboards.
- 35 unique shapes
- 18 challenging levels
- Real-time online battles
- Game Center leaderboards
- Unlockable achievements
- Customizable controls and visual styles
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Falling blocks, 35 shapes, and no ads. Play solo through 18 increasingly challenging levels, or challenge friends to live online battles. Rotate, slide, and drop pieces to complete lines and keep the board clear. Learn how each shape fits as the falling speed increases, and aim for a new high score. PLAY YOUR WAY • Master 35 different shapes across 18 levels. • Battle Game Center friends and other opponents in real time. • Invite your opponent to a rematch. • Choose swipe controls or on-screen buttons. • Pick your favorite visual style. • Compete on Game Center leaderboards and unlock achievements. No ads. Available in 58 languages.
Screenshots
Verdict
The clearest difference is price: Polyx 2D at Free against Kotoro's $0.99. Polyx 2D also leads on update cadence (every 3 days vs every 6 weeks) and rating (5.0 vs 4.7). Kotoro's advantage is ratings volume (118 vs 2) and iOS requirement (13.0 vs 18.0). On ads, in-app purchases and device support 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
Polyx 2D is free to download; Kotoro costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Polyx 2D holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Kotoro has 118 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 91% of Kotoro's written reviews are positive against 100% of Polyx 2D's.
Kotoro ships an update every 6 weeks, Polyx 2D every 3 days. The most recent releases landed on October 8, 2026 and October 7, 2026 respectively.
| Parameter | Kotoro | Polyx 2D |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.7 (118 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 90.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 118 — better | 2 |
| Update frequency | Every 6 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 108 MB | 73 MB |
| Age rating | 4+ | 4+ |
| Developer | Semidome Inc. | Skippy Skipmo LLC |
Customer experience
Kotoro
Polyx 2D
Bugs and requests
Kotoro
Reported bugs
4 issues- Music doesn't play on iPhone (works on iPad)
- App crashes frequently
- Incompatible with iOS 11 and newer (32-bit limitation)
- App compatibility warning on newer iOS versions
Requested features
10 requests- More levels and content
- Sound toggle/mute option
- Colorblind mode with textures or symbols
- Additive color (RGB) mixing levels
- On-demand tutorial system
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- Automatic progression to next level upon completion
- Visual feedback for level completion
- iOS 11+ and 64-bit app update
- Better chapter/progress indicators
- Increased spatial puzzle complexity
Polyx 2D
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Kotoro
No in-app purchases
Polyx 2D
No in-app purchases
