Calculator! vs CALC Smart 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.
CALC Smart Calculator ±
This app offers a versatile calculator experience with basic, scientific, and advanced modes. It features real-time results, unit conversions, custom functions, and a shareable history. Optimized for various Apple devices, it's designed for ease of use by students, professionals, and scientists.
- Real-time results
- Unit and currency conversions
- Custom functions and constants
- Shareable calculation history
- Landscape mode with tape-roll
- Gratuity calculator
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Why Choose CALC Smart? ► Used by Scientists, Professionals and Students alike ► Apple-Featured: Spotlighted in Utilities and Calculate & Convert. ► User-Loved: Over 10k+ global reviews and 200M+ sessions validate its utility. ► Educator-Certified: Praised by teachers on the Educational App Store for its intuitive UI. Ready for the Latest OS * Multitask on your iPad and use 3D Touch shortcuts. * Search your calculation history with Spotlight. * Widget with history integration. * Apple Watch support, complete with haptic feedback and complications. Top 10 Unique Features ① Real-time results, even with incomplete parentheses. ② Landscape mode for shareable history and tape-roll. ③ Optimized custom keyboard & widget to save space and time. ④ Fast unit and currency conversions—a swipe away. ⑤ Quick gratuity calculator with rounding options. ⑥ Display decimals as fractions with 1/999 precision. ⑦ Create unlimited custom functions and constants. ⑧ Easy expression sharing via link. ⑨ Built-in timer. ⑩ Limitless themes and layouts. Why Users Love CALC * Live Math: Natural input, even for complex calculations. * Swipe Functions: Over 60 advanced math functions just a swipe away. * History: Never lose track of your calculations. * Conversion: 21 categories, plus custom options. Additional Features * Edit on the Fly: Long-press to modify expressions and numbers. * Audio Feedback: Customize tapping sounds. * Styling: Multiple font choices. * Enterprise-Ready: EMM support with MDM & AppConfig. We Listen * Frequent updates based on your feedback. Got a suggestion? Visit our UserVoice page: https://QApps.UserVoice.com Custom Background Tip * Design your own CALC background with images from NASA’s multimedia library: https://nasa.gov/multimedia Terms & Usage * Using this app means agreeing to the standard Terms of Use. Standard Terms of Use (EULA) - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: CALC Smart Calculator ± at Free against Calculator!'s $0.99. CALC Smart Calculator ± also leads on update cadence (fortnightly vs every 3 months). Calculator!'s advantage is iOS requirement (9.0 vs 17.0). On rating, review sentiment, ratings volume and ads 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
CALC Smart Calculator ± is free to download; Calculator! costs $0.99 up front. Calculator! sells 1 one-off in-app purchase and CALC Smart Calculator ± sells 4 in-app purchases, starting at $0.99 per 3 months. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.8 for Calculator! against 4.8 for CALC Smart Calculator ±. Both are backed by a comparable volume of ratings — 4.3K and 2.4K respectively. Written reviews are what separate them: 86% of Calculator!'s written reviews are positive against 87% of CALC Smart Calculator ±'s.
Calculator! ships an update every 3 months, CALC Smart Calculator ± fortnightly. The most recent releases landed on November 12, 2026 and November 6, 2026 respectively.
| Parameter | Calculator! | CALC Smart Calculator ± |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.8 (4.3K ratings) — better | 4.8 (2.4K ratings) |
| Positive reviews | 86.0% of reviews | 87.2% of reviews — better |
| Number of ratings | 4.3K — better | 2.4K |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac, Apple Watch — better |
| Requires iOS | 9.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 56 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | 7th Gear | QApps LLC |
Customer experience
Calculator!
CALC Smart 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
CALC Smart Calculator ±
From 2.4K App Store ratingsWhat we love
- 💻 Excellent calculator functionality
- 🎨 Beautiful and clean interface
- 🔢 Displays full calculation history
- 🔍 Useful conversion tools
- 🤖 Seamless Apple Watch integration
Room to improve
- 💰 Subscription model introduced
- 🔒 Restricted features behind paywall
- 📊 Calculation bugs and inaccuracies
- 🔄 Unnecessary UI changes frustrate users
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
CALC Smart Calculator ±
Reported bugs
3 issues- Calculation errors in certain scenarios
- Forced tutorial popup on every launch
- Unreliable widget functionality
Requested features
4 requests- Ability to easily clear calculation history
- Option to customize button layout
- Support for entering hexadecimal numbers
- Integration with other apps and services
In-app purchases
Calculator!
- Calculator$0.99
CALC Smart Calculator ±
- Quarterly Supporter$0.993 Months
- Quarterly Supporter7 Days trial$1.993 Months
- Annual Contributor$2.991 Year
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- Annual Contributor7 Days trial$5.991 Year
Questions
Is Calculator! free?
Is CALC Smart Calculator ± free?
Which has better reviews, Calculator! or CALC Smart Calculator ±?
Do Calculator! or CALC Smart Calculator ± have ads?
Which is updated more often, Calculator! or CALC Smart Calculator ±?
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