Calc 2M vs Calculator ×
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calc 2M
This advanced calculator app offers a clean interface with both standard and pro features. It includes a history of calculations, drag-and-drop functionality, customizable themes, and the ability to export results. Ideal for students, engineers, and scientists needing precise calculations on the go.
- Calculation history
- Drag and drop input
- Customizable themes
- Export calculations
- Widget for quick access
- Editable expressions
- Advanced functions
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With over half a million users Calc 2M is the best calculator on the App Store! Calc 2M combines in a simple and beautiful design all the standard and pro features of a calculator! We put particular attention on user experience trying to create the best possible calculator for iPad, iPhone and Apple Watch! Features: • History: All the expressions you make will be saved in your history, you can reuse them whenever you want. • Drag&Drop: Drag your previously typed calculations on the display for an easier and faster entry. • Themes: Change theme to fit your style. A lot of skin options (Dark, Light, Ninja, Sunrise, Dev, Vintage) • Export: Print or send your calculations as you like. You can use any third-part applications that you have installed • Widget: Need a quick calculation? Install the widget. • Readability: Coloured syntax to improve expression readability. • Functions: The powerful advanced functions make it ideal also for students, engineers and scientists. • Editable expressions: Expression completely editable, use the cursor to move within the expression, copy and paste. • Settings: Set Calc 2M according to your needs. We are continually working on Calc 2M to bring you the best product possible! Feedback are very welcome. They help us to improve Calc 2M!
Calculator ×
This app redefines the calculator experience for touch-screen devices with a modern, intuitive design. It offers features like a tape log for storing calculations, formula evaluation, and iPad multitasking support for enhanced productivity.
- Tape Log for calculation history
- Reuse, copy, and share calculations
- Evaluate entire formulas at once
- iPad multitasking support
- Modern touch-screen design
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Designed exclusively for today's touch-screen devices, this calculator app represents a groundbreaking paradigm shift, leaving behind the outdated design patterns of mechanical calculators. We have meticulously crafted a new design from scratch, keeping modern touch-screen devices at the forefront of our innovation. • Tape Log: All your calculations are securely stored in the tape log, ensuring you never lose track of your numerical journey. • Calculation Management: Effortlessly reuse, copy, or share calculations to integrate them seamlessly into your work or daily life. • Formula Evaluation: Enter entire formulas in one line for swift and accurate evaluation, simplifying complex calculations. • iPad Multitasking: Experience true productivity with iPad multitasking support, enabling you to perform calculations while using other apps through Slide Over and Split View. Calculator Pro represents a powerful departure from traditional calculators, offering a tailored experience for touch-screen devices. Download now and embrace a new era of calculations with maximum control and power at your fingertips. Terms of Use: https://doubleuapp.com/privacy/terms.html
Screenshots
Verdict
The clearest difference is ads: Calc 2M at none against Calculator ×'s shown. Calc 2M also leads on rating (4.9 vs 4.5) and update cadence (monthly vs every 2 months). Calculator ×'s advantage is ratings volume (143 vs 28). On price, review sentiment, in-app purchases and monetization model 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. Calc 2M sells 7 one-off in-app purchases and Calculator × sells 4 in-app purchases, starting at $4.99 per year. Whichever you choose, the download price is not the number that matters.
Calc 2M holds the better App Store score, 4.9 against 4.5. That said, the two scores are not equally well evidenced: Calculator × has 143 ratings behind it against 28, so its average is the more settled of the two. Written reviews point the same way: 81% of Calc 2M's written reviews are positive against 73% of Calculator ×'s.
Calc 2M ships an update monthly, Calculator × every 2 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.
| Parameter | Calc 2M | Calculator × |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (28 ratings) — better | 4.5 (143 ratings) |
| Positive reviews | 81.0% of reviews — better | 73.3% of reviews |
| Number of ratings | 28 | 143 — better |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 48 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | inkOfPixel srl | DOUBLE U s.r.o. |
Customer experience
Calc 2M
Calculator ×
Bugs and requests
Calc 2M
Reported bugs
9 issues- App crashes on startup
- Trigonometric functions produce incorrect results
- Combination function (comb) returns wrong values
- Sin and Tan functions malfunction
- Swiping causes unintended function entry
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- Error state requires complete restart
- iPad version is laggy and unresponsive
- Spelling error in function names (trigonometry misspelled)
- App doesn't open on some devices
Requested features
10 requests- Automatic bracket completion
- Fraction to decimal converter and vice versa
- Apple Watch app support
- More font options and customizable font sizes
- RPN (Reverse Polish Notation) mode
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- Dedicated Clear/CE button in prominent location
- Easier negative number input
- Algebraic functions
- Graph plotting capabilities
- Ability to disable advanced options for basic calculator view
Calculator ×
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Calc 2M
- Ninja Theme$0.99
- Sunrise Theme$0.99
- Dev Theme$0.99
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- Vintage Theme$0.99
- Light theme$0.99
- Clarity Theme$0.99
- Theme Pack$1.99
Calculator ×
- Premium Yearly$4.991 Year
- Remove ads$4.99
- Remove ads$7.99
- Remove ads$11.99








