# Math Keyboard vs 字韵

The clearest difference is in-app purchases: 字韵 at none against Math Keyboard's 1. 字韵 also leads on iOS requirement (13.0 vs 26.2). On price, ads and device support there is nothing between them.

Both are free to download. Math Keyboard sells 1 one-off in-app purchase. 字韵 asks for nothing beyond the download.

## The numbers

| Metric | Math Keyboard | 字韵 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (12 ratings)](https://appshunter.io/ios/app/math-keyboard-formula-input/id6757350527/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 2 MB | 24 MB |
| Requires iOS | 26.2 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yuta Nishimatsu](https://appshunter.io/developer/1480004995) | [其诺 吕](https://appshunter.io/developer/1881180068) |

## What reviewers say

### 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 |


### 字韵

[App page](https://appshunter.io/ios/app/id6761086527)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Math Keyboard free?

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

### Is 字韵 free?

字韵 is free to download, with no in-app purchases.

### Do Math Keyboard or 字韵 have ads?

Neither Math Keyboard nor 字韵 shows ads.

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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.*