Eleven | Calculator vs Calculator ×
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Eleven | Calculator
This app offers a real-time calculation experience without an equals button, allowing you to see and edit your entire equation. It supports long calculations, unlimited undo/redo, and intelligent buttons for a streamlined user interface. Advanced scientific functions are available as an in-app purchase.
- Real-time calculation without equals button
- Editable entire calculation history
- Unlimited undo and redo
- Intelligent and context-aware buttons
- Supports basic and advanced operations
- Scientific calculator functions (in-app purchase)
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The BEST everyday calculator app for iPhone and iPad. - No equals button: Always automatically calculates the result in real-time while you type - No confusion: You can always see AND edit your entire calculation - Enter calculations of (almost) any length: The display and keypad automatically resize to fit - Tap or slide across the display to edit your calculation at any position - Unlimited Undo and Redo - More readable: Uses color to distinguish between numbers and operators - Intelligent buttons: Only those buttons light up which are relevant at any given time and cursor position - Gorgeous analog-style design - Four themes / skins included - Extremely fast. - Supports all basic operations: + - × ÷ √ - Supports advanced operations: ∛ x² x³ - Supports brackets ( ) - Supports results up to +/- 10³⁰⁰ - Long-tap the result to copy it to the clipboard SCIENTIFIC CALCULATOR! (landscape orientation, available as In-App Purchase) - Power function with fully editable exponent. - Root function with fully editable degree. - Logarithm function with fully editable base. - Trigonometric functions: sin, cos, tan. - Inverse trigonometric functions: asin, acos, atan. - Hyperbolic functions: sinh, cosh, tanh. - Inverse hyperbolic functions: asinh, acosh, atanh. - Factorial function (integers only). - Modulo (remainder) operator (mod). - Smart constants: π, e. - Smart random number generator. - No mode switching -- all functions immediately available.
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: Eleven | Calculator at none against Calculator ×'s shown. Eleven | Calculator also leads on rating (5.0 vs 4.5) and iOS requirement (11.4 vs 15.0). Calculator ×'s advantage is ratings volume (143 vs 3) and update cadence (every 2 months vs every 8 months). On price, in-app purchases, monetization model 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
Both are free to download. Eleven | Calculator sells 1 one-off in-app purchase 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.
Eleven | Calculator holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Calculator × has 143 ratings behind it against 3, so its average is the more settled of the two.
Eleven | Calculator ships an update every 8 months, Calculator × every 2 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.
| Parameter | Eleven | Calculator | Calculator × |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | 4.5 (143 ratings) |
| Positive reviews | — | 73.3% of reviews |
| Number of ratings | 3 | 143 — better |
| Update frequency | Every 8 months | Every 2 months — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.4 — better | 15.0 |
| Further details — not scored | ||
| Size | 2 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Alexander Ewering | DOUBLE U s.r.o. |
Customer experience
Eleven | Calculator
Calculator ×
In-app purchases
Eleven | Calculator
- Scientific Calculator$0.99
Calculator ×
- Premium Yearly$4.991 Year
- Remove ads$4.99
- Remove ads$7.99
- Remove ads$11.99
Questions
Is Eleven | Calculator free?
Is Calculator × free?
Which has better reviews, Eleven | Calculator or Calculator ×?
Do Eleven | Calculator or Calculator × have ads?
Which is updated more often, Eleven | Calculator or Calculator ×?
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