Big 9 vs Sumaddle
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Big 9
A zen-like logic game where you merge numbers to grow them from one to nine. It features simple touch controls, no timers, and automatic saving for a relaxing experience.
- Merge numbers up to nine
- Simple touch controls
- No timers
- Automatic progress saving
- Large, readable numbers
- Disable sounds
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Are you ready for a zen-like game of patience and strategy? Try to grow your numbers from ones all the way up to nines without running out of space! Easy to learn, tricky to master! • Simple touch controls! • Just tap to place a number, and then tap on a group of three or more identical numbers to merge them into the next higher number! • Beautiful, easy-to-read large type numbers! • No timers at all! Just relax and have fun! • Your progress is automatically saved, all the time, so go ahead and take that call or jump out to any other apps - you can come back and pick up playing right where you left off! • Sounds can be disabled if you want a quiet game • You can even listen to your own music while you play Download Big 9 today! --- Thanks for playing! Come see us at http://boyhowdytechnology.com
Sumaddle
This logic puzzle game transforms pencil-and-paper challenges into interactive brain teasers. Fit number combinations to clues using pure logic, with no mental arithmetic required. Enjoy over 150 free puzzles of varying difficulty, with built-in help and offline play.
- Interactive logic puzzles
- Number combination fitting
- Pure logic solving
- Built-in help and mistake correction
- Over 150 free puzzles
- Offline play
- Ad-free experience
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This type of logical puzzle was first seen in the Japan Puzzle Championship 2006 and is sometimes known as Doppelblock, or Smashed Sums. When played with pencil and paper, these puzzles can be hard work to solve. Sumaddle changes that by transforming the puzzles into interactive brain teasers that unfold before your eyes. Each puzzle has a unique solution. Finding the solution involves fitting the number combinations to the clues. The app makes it easy to view the possible combinations, you don’t need to do any sums in your head. Instead, you are able to focus on using logic to narrow down the combinations and find a fitting arrangement. The puzzles come in a range of sizes and difficulties, to suit all levels of skill and puzzling purposes. Choose a small puzzle to idle away a minute or two while waiting in a queue, or a big puzzle to give your brain some exercise during a coffee break! Some reasons why you will enjoy playing Sumaddle: • more than 150 puzzles are included for free • all puzzles can be solved with pure logic, no mental arithmetic required • the sophisticated built-in help can explain the logical reasoning at each step and also fix mistakes if you go wrong • the built-in help is completely free, use it as much as you like • works offline (great for long journeys) • a high standard of accessibility, including comprehensive support for VoiceOver • ad-free play - there are absolutely no ads! IGRS age rating (Indonesia Game Rating System): 3+ Designed and developed in Winterthur, Switzerland
Screenshots
Verdict
The clearest difference is in-app purchases: Big 9 at none against Sumaddle's 10. Big 9 also leads on iOS requirement (12.0 vs 17.0). Sumaddle's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 5 months). On price, review sentiment, ratings volume 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
Both are free to download. Sumaddle sells 10 one-off in-app purchases. Big 9 asks for nothing beyond the download.
Sumaddle holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 595 and 769 respectively. Written reviews point the same way: 93% of Big 9's written reviews are positive against 95% of Sumaddle's.
Big 9 ships an update every 5 months, Sumaddle every 3 weeks. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | Big 9 | Sumaddle |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (595 ratings) | 4.9 (769 ratings) — better |
| Positive reviews | 93.3% of reviews | 94.9% of reviews — better |
| Number of ratings | 595 | 769 — better |
| Update frequency | Every 5 months | Every 3 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 32 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | Boy Howdy Technology LLC | Jonathan Buchanan |
Customer experience
Big 9
Sumaddle
User reviews
Big 9
From 595 App Store ratingsWhat we love
- 👍 Fun and addictive gameplay
- 🚀 Challenging but doable
- 💡 Unique concept
- 🎨 Visually appealing
- 🆓 Free with no IAPs
Room to improve
- 🐛 Imbalance in number distribution
- 🔧 Unclear rules/instructions
- 🔍 Difficulty in distinguishing certain numbers
Sumaddle
From 769 App Store ratingsWhat we love
- 👍 Fun and challenging game
- 👍 Clean and intuitive interface
- 👍 Helpful hint system
- 🚀 No ads or data collection
- 💡 Unique puzzle concept
Room to improve
- 🐛 Automatic hints can be intrusive
- 🐛 Inability to replay completed puzzles
- 💡 Need more free/sample puzzles
- 💡 Difficulty progression could be improved
Bugs and requests
Big 9
Reported bugs
2 issues- Sensitive ad placement causing interruptions
- Compatibility issues on older devices
Requested features
3 requests- More game modes or difficulty levels
- Undo/rewind feature
- French word games
Sumaddle
Reported bugs
2 issues- Losing progress when minimizing the app
- Inconsistent difficulty ratings
Requested features
4 requests- Ability to selectively pencil in notes
- More difficult puzzle options
- Synced progress across devices
- Detailed statistics and leaderboard
In-app purchases
Big 9
No in-app purchases
Sumaddle
- Crafty, Pack 1$0.99
- Crafty, Pack 2$0.99
- Crafty, Pack 3$0.99
Show 7 moreShow fewer
- Sneaky, Pack 1$0.99
- Sneaky, Pack 2$0.99
- Sneaky, Pack 3$0.99
- Tricky, Pack 1$0.99
- Tricky, Pack 2$0.99
- Tricky, Pack 3$0.99
- Puzzle Generator$9.99









