# Calculator Keyboard vs Math Keyboard

The clearest difference is review sentiment: Calculator Keyboard at 77% against Math Keyboard's 0%. Calculator Keyboard also leads on rating (4.7 vs 3.3) and ratings volume (493 vs 12). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Calculator Keyboard sells 2 in-app purchases, starting at $0.99 per month and Math Keyboard sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Calculator Keyboard holds the better App Store score, 4.7 against 3.3. That said, the two scores are not equally well evidenced: Calculator Keyboard has 493 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 77% of Calculator Keyboard's written reviews are positive against 0% of Math Keyboard's.

Calculator Keyboard ships an update every 3 weeks, Math Keyboard every 5 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Calculator Keyboard | Math Keyboard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (493 ratings)](https://appshunter.io/ios/app/calculator-keyboard-calku/id1546065778/reviews)** | [3.3 (12 ratings)](https://appshunter.io/ios/app/math-keyboard-formula-input/id6757350527/reviews) |
| Number of ratings | **493** | 12 |
| Positive reviews | **76.8% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 3 MB | 2 MB |
| Requires iOS | **14.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Supagarn Pattananuchart](https://appshunter.io/developer/1488328374) | [Yuta Nishimatsu](https://appshunter.io/developer/1480004995) |

## What reviewers say

### Calculator Keyboard

[App page](https://appshunter.io/ios/app/calculator-keyboard-calku/id1546065778)

This app turns your keyboard into a powerful calculator, allowing you to perform calculations directly within any application. Avoid switching apps and copying numbers by calculating on the go, whether you're texting, taking notes, or browsing.

**Highlights:** Calculate within any app, Supports Dark Mode, Customizable decimal points, Scientific calculator functions, Calculation history access, Keyboard feedback options

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calku PRO (1 Month) | $0.99 | per month |
| Calku Pro - Lifetime | $5.99 | one-time |

**What reviewers like**

- 👍 Very useful application
- 🚀 Handy calculator within keyboard
- 💡 Innovative idea for an app
- 👍 Easy to use
- 🔒 Respects user privacy

**What reviewers complain about**

- 🐛 Cannot delete the app
- 🐛 Buggy at times
- 🐛 Non-standard division/multiplication symbols
- 🐛 Incorrect calculations
- 🐛 Doesn't work on all apps initially

**Reported bugs**

- Cannot delete the app
- App is buggy sometimes
- Non-standard division and multiplication symbols not recognized by other apps
- Incorrect calculations (e.g., 3.10 / 1000 = 0)
- App only works on Apple Mail and Notes initially

**Requested features**

- Add thousands separator for numbers
- Haptic feedback on key presses
- Option to hide computation in text box
- History button on main page
- Option for standard multiplication and division


### Math Keyboard

[App page](https://appshunter.io/ios/app/math-keyboard-formula-input/id6757350527)

This custom keyboard simplifies typing mathematical and physics symbols, including Greek letters and superscripts/subscripts. Seamlessly input formulas into any app without needing to copy and paste from external sources. Enhance your notes, reports, and messages with ease.

**Highlights:** Superscripts/subscripts for numbers, letters, and symbols, Greek letters support, Wide variety of math symbols, Familiar keyboard layout, Quick tab switching, Cursor control via long-press

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MathKeyboard Pro | $5.99 | one-time |


## Frequently asked questions

### Is Calculator Keyboard free?

Calculator Keyboard is free to download, with in-app purchases available.

### Is Math Keyboard free?

Math Keyboard is free to download, with in-app purchases available.

### Which has better reviews, Calculator Keyboard or Math Keyboard?

Calculator Keyboard is rated higher. Calculator Keyboard averages 4.7 out of 5 from 493 ratings, while Math Keyboard averages 3.3 from 12 ratings.

### Do Calculator Keyboard or Math Keyboard have ads?

Neither Calculator Keyboard nor Math Keyboard shows ads.

### Which is updated more often, Calculator Keyboard or Math Keyboard?

Calculator Keyboard ships an update every 3 weeks, and Math Keyboard every 5 weeks. Most recently, Calculator Keyboard was updated on October 24, 2026 and Math Keyboard on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*