Comparison

Calculator vs Sumaddle

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

Head to head
About

Calculator

Engage in a unique numerical adventure where a calculator transforms into a game. Solve puzzles by manipulating numbers through various operations and even portals. This app offers a fun and challenging way to interact with mathematical concepts.

Highlights
  • Number manipulation puzzles
  • Adding, subtracting, converting numbers
  • Using portals to solve challenges
  • LCD display for long equations
  • Interactive assistant
  • Functioning solar panel
Features
Read full description

In a world of calculators, one dared to become a game. Sure, you've used calculators before, but have you ever "played" a calculator? Welcome to Calculator: The Game where you'll manipulate numbers by adding them, subtracting them, converting them, reversing them, and stuffing them through portals ... yes ... PORTALS. Calculator: The Game features: - LCD DISPLAY for extra long equations - COMFORTABLE BUTTONS designed for modern gameplay - CLICKY, THE SNARKY ASSISTANT who will help you win - FUNCTIONING SOLAR PANEL - APPROVED for use in Calculator: The Game

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

Calculator3 screens
Sumaddle3 screens

Verdict

The call

The clearest difference is update cadence: Calculator at every 6 days against Sumaddle's every 3 weeks. Calculator also leads on iOS requirement (11.0 vs 17.0). Sumaddle's advantage is rating (4.9 vs 4.7) and review sentiment (95% vs 86%). On price, ratings volume, ads and in-app purchases 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. Calculator sells 6 one-off in-app purchases 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 4.7. Both are backed by a comparable volume of ratings — 1.1K and 769 respectively. Written reviews point the same way: 86% of Calculator's written reviews are positive against 95% of Sumaddle's.

UpkeepUpdate frequency

Calculator ships an update every 6 days, Sumaddle every 3 weeks. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
Calculator versus Sumaddle: the parameters behind the verdict, then further details
ParameterCalculatorSumaddle
PriceFreeFree
Rating4.7 (1.1K ratings)4.9 (769 ratings) — better
Positive reviews85.6% of reviews94.9% of reviews — better
Number of ratings1.1K — better769
Update frequencyEvery 6 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better17.0
Further details — not scored
Size138 MB31 MB
Age rating4+4+
DeveloperSimple Machine, LLCJonathan Buchanan

Customer experience

Calculator

All ratings1,120 ratings
Positive93.6%
Neutral2.9%
Negative3.5%
Written reviews973 reviews
Positive85.6%
Neutral5.5%
Negative8.8%

Sumaddle

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

User reviews

Calculator

From 1.1K App Store ratings

What we love

  • 👍 Entertaining and challenging
  • 💡 Unique math-based puzzle concept
  • 🤖 Cute calculator character
  • 🧠 Helps improve math skills
  • ⏱️ Good time killer

Room to improve

  • 📺 Too many intrusive ads
  • 🛒 No option to remove ads via in-app purchase
  • 🐛 Occasional crashes and bugs
  • 🔍 Unclear button functions

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

Calculator

Reported bugs

3 issues
  • Crashes on level 184 when dividing by 2
  • Daily hint feature not working properly
  • Buttons not showing up correctly after new levels

Requested features

4 requests
  • Add sound/music toggle option
  • Implement progress sync across devices
  • Provide more challenging levels
  • Fix button labeling issues

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

6 purchases

Calculator

One-time6
  • 3 Hints$0.99
  • Remove Ads$1.99
  • 9 Hints$2.99
Show 3 more
  • 16 Hints$4.99
  • 36 Hints$9.99
  • 80 Hints$19.99
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 Calculator free?
Calculator 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, Calculator or Sumaddle?
Sumaddle is rated higher. Calculator averages 4.7 out of 5 from 1.1K ratings, while Sumaddle averages 4.9 from 769 ratings.
Do Calculator or Sumaddle have ads?
Neither Calculator nor Sumaddle shows ads.
Which is updated more often, Calculator or Sumaddle?
Calculator ships an update every 6 days, and Sumaddle every 3 weeks. Most recently, Calculator was updated on October 29, 2026 and Sumaddle on October 24, 2026.

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