Comparison

Big 9 vs Sumaddle

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Merge numbers up to nine
  • Simple touch controls
  • No timers
  • Automatic progress saving
  • Large, readable numbers
  • Disable sounds
Read full description

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

About

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.

Highlights
  • Interactive logic puzzles
  • Number combination fitting
  • Pure logic solving
  • Built-in help and mistake correction
  • Over 150 free puzzles
  • Offline play
  • Ad-free experience
Features
Read full description

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

Big 92 screens
Sumaddle3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Sumaddle sells 10 one-off in-app purchases. Big 9 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard6 real differences · 4 level
Big 9 versus Sumaddle: the parameters behind the verdict, then further details
ParameterBig 9Sumaddle
PriceFreeFree
Rating4.7 (595 ratings)4.9 (769 ratings) — better
Positive reviews93.3% of reviews94.9% of reviews — better
Number of ratings595769 — better
Update frequencyEvery 5 monthsEvery 3 weeks — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size32 MB31 MB
Age rating4+4+
DeveloperBoy Howdy Technology LLCJonathan Buchanan

Customer experience

Big 9

All ratings582 ratings
Positive93.8%
Neutral4.0%
Negative2.2%
Written reviews60 reviews
Positive93.3%
Neutral5.0%
Negative1.7%

Sumaddle

All ratings769 ratings
Positive98.3%
Neutral0.7%
Negative1.0%
Written reviews98 reviews
Positive94.9%
Neutral1.0%
Negative4.1%

User reviews

Big 9

From 595 App Store ratings

What 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 ratings

What 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

None

Big 9

No in-app purchases

10 purchases

Sumaddle

One-time10
  • Crafty, Pack 1$0.99
  • Crafty, Pack 2$0.99
  • Crafty, Pack 3$0.99
Show 7 more
  • 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

Questions

Is Big 9 free?
Big 9 is free to download, with no in-app purchases.
Is Sumaddle free?
Sumaddle is free to download, with in-app purchases available.
Which has better reviews, Big 9 or Sumaddle?
Sumaddle is rated higher. Big 9 averages 4.7 out of 5 from 595 ratings, while Sumaddle averages 4.9 from 769 ratings.
Do Big 9 or Sumaddle have ads?
Big 9 shows ads; Sumaddle does not.
Which is updated more often, Big 9 or Sumaddle?
Big 9 ships an update every 5 months, and Sumaddle every 3 weeks. Most recently, Big 9 was updated on November 6, 2026 and Sumaddle on November 3, 2026.

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