# Eleven \| Calculator

> Real-time calculator with editable history and advanced functions. (iPhone/iPad app by Alexander Ewering.)

- Source: https://appshunter.io/ios/app/eleven-calculator/id890014369 (this page in markdown: same URL + `.md`)
- Developer: [Alexander Ewering](https://appshunter.io/developer/1743777532)
- Category: Utilities, Education
- Price: Free with in-app purchases
- Rating: 5.00/5 from 3 App Store ratings
- Age rating: 4+
- Requires: iOS 11.4 · 2 MB
- Languages: American English, German (Germany), European Spanish
- Released: 2014-06-23
- Data updated: 2026-08-28
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/eleven-calculator/id890014369/reviews.md

## What is Eleven | Calculator?

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.

## Key features

- 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)

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Scientific Calculator | $0.99 | one-time |



## Frequently asked questions about Eleven | Calculator

### Does Eleven have an equals button?

No, Eleven does not have an equals button. It automatically calculates the result in real-time as you type, providing a dynamic and immediate feedback loop for your calculations.

### Can I edit my calculations in Eleven?

Yes, you can see and edit your entire calculation at any position by tapping or sliding across the display. This feature, combined with unlimited undo and redo, makes complex calculations manageable.

### Is the scientific calculator in Eleven free?

The basic calculator functions in Eleven are free. The advanced scientific calculator features, including power, root, logarithm, and trigonometric functions, are available as an in-app purchase.

### What devices does Eleven support?

Eleven is designed for Apple devices and supports iPhone, iPad, and iPod. It offers a gorgeous analog-style design and themes that adapt to your device.

### How often is Eleven updated?

Eleven was last updated on November 14, 2019, with version 1.5. While not frequently updated recently, its core functionality remains robust for its intended purpose.

### What is the age rating for Eleven?

Eleven has an age rating of 4+, making it suitable for a wide range of users. Its intuitive design and clear interface are accessible for younger users and adults alike.

### Does Eleven have ads?

No, Eleven does not contain advertisements. This ensures an uninterrupted and focused calculation experience for all users.

### How do I copy a result in Eleven?

To copy a result to your clipboard in Eleven, simply long-tap on the displayed result. This provides a quick and convenient way to transfer calculated values for use elsewhere.

## Version history (last 5 releases)

### 1.5 — 2019-11-14

FIXES:

- Enable/disable Smart Buttons correctly when moving the cursor.
- Avoid slight precision errors when displaying the result of certain calculations, hopefully avoiding further one-star reviews.
- Layout fixes for iPhone X/11 and iOS 13.

### 1.41 — 2019-03-30

NEW:

- Added new theme "MaxPro".

IMPROVEMENTS:

- Smoother display update when changing between landscape and portrait orientation.
- Better compatibility with iPhone X and the new iPad Pro.

FIXES:

- Fix inaccurate cursor movement by touching / swiping the input area.

### 1.32 — 2017-04-05

- Workaround for a problem with orientation detection introduced in iOS 10.3.1.

### 1.31 — 2017-03-20

- Fixed problem with the App Store (In-App purchase).

New in Version 1.3:

- FULL SCIENTIFIC CALCULATOR (In-App purchase). Just turn the device to landscape.
- Various fixes and improvements.

### 1.3 — 2017-03-17

- ADVANCED SCIENTIFIC CALCULATOR! (landscape orientation, available as In-App Purchase). More info in app description.
- More accurate coloring of buttons and calculation.
- Intelligent Buttons were sometimes disabled even though they could have been useful. Fixed.
- Backspace will now erase entire operators including their parameters with a single tap.
- Performance improvements.

## Apps similar to Eleven | Calculator

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Input Calculator](https://appshunter.io/ios/app/input-calculator/id6702001389) | 5.0 (1) | Free | Utilities |
| [Calculator - Andulator](https://appshunter.io/ios/app/calculator-andulator/id1150777586) | 5.0 (2) | Free | Utilities |
| [Cube Root Calculator SDG](https://appshunter.io/ios/app/cube-root-calculator-sdg/id6741202278) | — | Free | Utilities |
| [MA Calculator](https://appshunter.io/ios/app/ma-calculator/id6743064920) | — | Free | Utilities |
| [Nummeric: Calculator & Solver](https://appshunter.io/ios/app/nummeric-calculator-and-solver/id6765857310) | 5.0 (1) | Free | Utilities |
| [iPocket Calculator](https://appshunter.io/ios/app/ipocket-calculator/id6445945819) | 4.7 (3) | Free | Utilities |

## More apps by Alexander Ewering

- [MusicFolder 2](https://appshunter.io/ios/app/musicfolder-2/id1366466861)
- [encircled.](https://appshunter.io/ios/app/encircled/id1387312877)
- [Xequence AU \| Keys](https://appshunter.io/ios/app/xequence-au-keys/id1453028249)
- [Xequence AU \| Pads](https://appshunter.io/ios/app/xequence-au-pads/id1453556216)
- [Xequence 2](https://appshunter.io/ios/app/xequence-2/id1464669442)

All apps by Alexander Ewering: https://appshunter.io/developer/1743777532

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-28.*