Dice 21: Number Puzzle
RYO YAMAMOTO Games iPhoneiPadiPod touch
Dice 21: Number Puzzle is a free Games app for iPhone and iPad by RYO YAMAMOTO. Requires iOS 17.0. Updated August 14, 2026.
- Price
- Free
- on the App Store
- Size
- 31 MB
- Age 4+
- Updated
- Aug 14
- 2026 · v1.0.4
Screenshots
About Dice 21: Number Puzzle
Place a die. Make exactly 21. Clear the line. Dice 21 is a quick number puzzle about choosing an open cell while reading the next roll. The rule is simple; the decisions and chains keep growing. HOW TO PLAY • Place the NEXT die in any open cell. • Make one row or column total exactly 21 to clear it. • Clear a row and column together for a DOUBLE 21 and 8× the points. • Clear again within two moves to build a CHAIN worth up to 25×. • Spend a Flip Token to turn one die to its opposite face. • In timed modes, each score target adds 15 seconds. PLAY YOUR WAY • Four modes: 90 seconds, 3 minutes, 5 minutes, and Endless • A high score for every mode, plus Game Center leaderboards • The same daily dice sequence for every player • Play streaks and rotating weekly missions • Share your score and maximum CHAIN as an image • 13 animal worlds, including rabbit, bear, cat, penguin, and more The Theme Pack is a one-time purchase that permanently unlocks 11 premium themes. The Monthly Ad Skip Pass removes in-game ads while active and includes one ad-free continue in every eligible run. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
What’s new
Version 1.0.4 · Updated August 14, 2026
Restored one continue in every eligible standard game and clarified Daily practice replays. Removed distracting board tap highlights, added clearer remaining totals, improved Flip controls, How to Play, weekly missions, and results, and added shareable result cards and mission reward feedback.
App privacy
The developer, RYO YAMAMOTO, reported these privacy practices to Apple.
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Location: Coarse Location
- Identifiers: Device ID
- Usage Data: Product Interaction, Advertising Data
Used for: Third-Party Advertising, Developer’s Advertising or Marketing, Analytics, App Functionality
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Diagnostics: Performance Data, Crash Data
- Purchases: Purchase History
Used for: Third-Party Advertising, Developer’s Advertising or Marketing, Analytics, App Functionality
Alternatives to Dice 21: Number Puzzle
Looking for apps like Dice 21: Number Puzzle? Here are 6 similar apps on the App Store. The highest rated is Doki Doki Days (4.9/5), and all 6 are free to download.
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Puzzrama
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Doki Doki Days
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Dice 21: Number Puzzle | – | Free | August 14, 2026 | |
| Subtraction App | – | Free | Jan 16, 2026 | Compare |
| intro - Music Intro Quiz | – | Free | Oct 21, 2026 | Compare |
| Jumpin Hero | 4.2 / 5 (39) | Free | Sep 5, 2024 | Compare |
| Puzzrama | 4.6 / 5 (29,193) | Free | Oct 6, 2026 | Compare |
| Honey Collection: Idle Bees | – | Free | Oct 21, 2026 | Compare |
| Doki Doki Days | 4.9 / 5 (84) | Free | Nov 24, 2025 | Compare |