Comparison

What's inside the box? vs Sumaddle

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

Head to head
About

What's inside the box?

Engage in a series of challenging puzzles to uncover the contents of various boxes. Utilize hints to overcome difficult levels and unlock additional features for an enhanced experience.

Highlights
  • Solve 100+ puzzles
  • Discover box contents
  • Use hint system
  • Premium unlock available
  • Skip level option
Features
Read full description

What's inside the box? A lot of puzzles! Can you solve all 100 and discover what's in the box? Need hints? Use the hint button at the bottom in each level. There are 2 hints for each level. With the premium unlock in-app you will not get ads before the hints and you will get a skip level button after asking the 2 hints in each level. (note: with the premium unlock the skip button will appear AFTER asking the 2 hints in each level) Enjoy! @BartBonte

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

What's inside the box?4 screens
Sumaddle3 screens

Verdict

The call

The clearest difference is rating: Sumaddle at 4.9 against What's inside the box?'s 4.3. Sumaddle also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 3 months). What's inside the box?'s advantage is iOS requirement (12.0 vs 17.0). On price, in-app purchases, monetization model 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. What's inside the box? sells 1 one-off in-app purchase and Sumaddle sells 15 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Sumaddle holds the better App Store score, 4.9 against 4.3. That said, the two scores are not equally well evidenced: Sumaddle has 769 ratings behind it against 111, so its average is the more settled of the two. Written reviews point the same way: 78% of What's inside the box?'s written reviews are positive against 95% of Sumaddle's.

UpkeepUpdate frequency

What's inside the box? ships an update every 3 months, Sumaddle every 3 weeks. Both last shipped on October 24, 2026.

Scorecard6 real differences · 4 level
What's inside the box? versus Sumaddle: the parameters behind the verdict, then further details
ParameterWhat's inside the box?Sumaddle
PriceFreeFree
Rating4.3 (111 ratings)4.9 (769 ratings) — better
Positive reviews77.7% of reviews94.9% of reviews — better
Number of ratings111769 — better
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size23 MB31 MB
Age rating12+4+
DeveloperBart BONTEJonathan Buchanan

Customer experience

What's inside the box?

All ratings111 ratings
Positive80.2%
Neutral7.2%
Negative12.6%
Written reviews112 reviews
Positive77.7%
Neutral12.5%
Negative9.8%

Sumaddle

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

User reviews

What's inside the box?

From 111 App Store ratings

What we love

  • 🧩 Excellent puzzle design with logical solutions
  • 💡 Innovative and creative puzzle mechanics
  • 🎯 Well-balanced difficulty progression
  • 🏆 100 unique levels with variety
  • 👨‍💻 High-quality work from respected developer Bart Bonte

Room to improve

  • 🐛 Progress resets when switching apps or reopening
  • 😤 Certain levels are frustratingly difficult or poorly designed
  • 🔄 Some levels are repetitive or duplicated
  • ❓ Vague hints that don't adequately help stuck players
  • ⏸️ No pause functionality mid-level

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

What's inside the box?

Reported bugs

7 issues
  • Progress lost when switching apps or reopening application
  • Level 43 button unresponsive after pressing question mark
  • Level 7 layer movement not functioning correctly
  • Level 45 resets progress to level 21
  • Screen rendering issues making portions unviewable
Show 2 more
  • Hints not unlocking next level despite correct solution
  • Multiple levels appearing identical or too similar (52/72, 81/88)

Requested features

6 requests
  • Skip button for difficult levels
  • Pause functionality during gameplay
  • Improved hint system with clearer guidance
  • Additional levels beyond 100
  • Better progress save system
Show 1 more
  • Sequel or expansion content

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

1 purchases

What's inside the box?

One-time1
  • premium unlock$2.49
15 purchases

Sumaddle

One-time15
  • Quirky, Pack 5$0.99
  • Very Difficult Puzzles$0.99
  • Quirky, Pack 1$0.99
Show 12 more
  • Premium 9x9 Puzzles, Pack 1$0.99
  • Crafty, Pack 1$0.99
  • Crafty, Pack 2$0.99
  • Crafty, Pack 3$0.99
  • 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
  • Assorted Puzzles$0.99
  • Puzzle Generator$9.99

Questions

Is What's inside the box? free?
What's inside the box? is free to download, with in-app purchases available.
Is Sumaddle free?
Sumaddle is free to download, with in-app purchases available.
Which has better reviews, What's inside the box? or Sumaddle?
Sumaddle is rated higher. What's inside the box? averages 4.3 out of 5 from 111 ratings, while Sumaddle averages 4.9 from 769 ratings.
Do What's inside the box? or Sumaddle have ads?
What's inside the box? shows ads; Sumaddle does not.
Which is updated more often, What's inside the box? or Sumaddle?
What's inside the box? ships an update every 3 months, and Sumaddle every 3 weeks. Most recently, What's inside the box? was updated on October 24, 2026 and Sumaddle on October 24, 2026.

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