Calculator! vs Calculator%.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator!
This app offers a versatile calculator experience with both standard and scientific modes. Customize its appearance, use it in any orientation, and access additional tools like a notes tab and calculation history. It's designed for students and professionals needing accurate calculations.
- Standard and scientific calculator modes
- Customizable look (iPad only)
- Portrait and landscape orientation
- Notes and drawing tab
- Calculation history
- AirPrint and email support
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Calculator! is an easy to use, beautifully packaged calculator for your iPad or iPhone that includes both a standard and scientific calculator. Our versatile calculator app allows you to: • Customize the look of the application by changing the leather color and background texture (iPad Only) • Choose between a basic calculator or scientific calculator with more than 30 scientific operations • Use both calculators in portrait or landscape mode • Take notes or draw with your finger on the Notes Tab • View and edit a history of your calculations on the History Tab • Use Airprint to print your notes or your calculation history • Email your calculation history or notes from within the app • View an equation of your current calculations • Calculate with accuracy to more than 75 significant digits • Use parenthesis and nested parenthesis in your calculations We wrote Calculator! to be the perfect calculator for budding math students and professionals alike.
Calculator%.
This app offers a straightforward calculator with a large display and oversized buttons for easy operation. It's designed for everyday tasks, enabling users to perform fundamental arithmetic like addition, subtraction, multiplication, and division with clarity and convenience.
- Big display and buttons
- Easy to use
- Basic calculations
- Clear display format
- Intuitive design
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Simple calculator with big display and button. Easy to use for daily work. Perform basic calculations such as addition, subtraction, multiplication, and division. Characteristics : - A clear display format and easy to read. - An intuitive and attractive design that facilitates calculations every day.
Screenshots
Verdict
The clearest difference is price: Calculator%. at Free against Calculator!'s $0.99. Calculator%. also leads on in-app purchases (none vs 1). Calculator!'s advantage is ads (none vs shown) and rating (4.8 vs 4.4). On ratings volume, update cadence 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
Calculator%. is free to download; Calculator! costs $0.99 up front. Calculator! sells 1 one-off in-app purchase. Calculator%. asks for nothing beyond the download.
Calculator! holds the better App Store score, 4.8 against 4.4. Both are backed by a comparable volume of ratings — 4.3K and 4.2K respectively. Written reviews point the same way: 86% of Calculator!'s written reviews are positive against 61% of Calculator%.'s.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 20, 2026 and October 19, 2026 respectively.
| Parameter | Calculator! | Calculator%. |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.8 (4.3K ratings) — better | 4.4 (4.2K ratings) |
| Positive reviews | 86.0% of reviews — better | 61.2% of reviews |
| Number of ratings | 4.3K — better | 4.2K |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 12.1 |
| Further details — not scored | ||
| Size | 56 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | 7th Gear | UniCom Technology |
Customer experience
Calculator!
Calculator%.
User reviews
Calculator!
From 4.3K App Store ratingsWhat we love
- 💰 Reasonably priced
- 📝 Useful note-taking features
- 📊 Keeps a calculation history
- 🎨 Customizable appearance
- 🔍 Helpful log and tracking features
Room to improve
- 🤔 Confusing input box behavior
- 🔍 Lack of graphing features
- 🔍 Missing some scientific calculator buttons
- 🔍 Inconsistent widget behavior
- 🔍 Issues with split-screen and resizing
Calculator%.
From 4.2K App Store ratingsWhat we love
- 👍 Easy to use
- 🚀 Convenient for large numbers
- 💡 Helpful for solving problems
Room to improve
- 🐛 Occasional glitches and bugs
- 💸 Intrusive ads
- 🔍 Difficult to find settings/options
Bugs and requests
Calculator!
Reported bugs
4 issues- Widget doesn't work as expected
- Calculation history not available in portrait mode
- Resizing issues on iPad Pro
- Slow startup times on older devices
Requested features
5 requests- Add unit conversion tools
- Improve calculation expression logic
- Allow notes to be viewed in portrait mode
- Implement a scratch paper area on the right side
- Add ability to sync data across devices
Calculator%.
Reported bugs
3 issues- App crashes when adding certain numbers
- Buttons not responsive at times
- Incorrect calculations for some operations
Requested features
3 requests- History feature
- Customizable interface
- Improved accuracy for decimal calculations
In-app purchases
Calculator!
- Calculator$0.99
Calculator%.
No in-app purchases
