Calculator vs Sumaddle
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
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.
- Number manipulation puzzles
- Adding, subtracting, converting numbers
- Using portals to solve challenges
- LCD display for long equations
- Interactive assistant
- Functioning solar panel
Read full descriptionHide 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
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
Read full descriptionHide 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
Verdict
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
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.
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.
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.
| Parameter | Calculator | Sumaddle |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (1.1K ratings) | 4.9 (769 ratings) — better |
| Positive reviews | 85.6% of reviews | 94.9% of reviews — better |
| Number of ratings | 1.1K — better | 769 |
| Update frequency | Every 6 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 138 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | Simple Machine, LLC | Jonathan Buchanan |
Customer experience
Calculator
Sumaddle
User reviews
Calculator
From 1.1K App Store ratingsWhat 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 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
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
Calculator
- 3 Hints$0.99
- Remove Ads$1.99
- 9 Hints$2.99
Show 3 moreShow fewer
- 16 Hints$4.99
- 36 Hints$9.99
- 80 Hints$19.99
Sumaddle
- Quirky, Pack 5$0.99
- Very Difficult Puzzles$0.99
- Quirky, Pack 1$0.99
Show 12 moreShow fewer
- 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









