# Key Calculator vs TextMath

The clearest difference is in-app purchases: Key Calculator at none against TextMath's 1. Key Calculator also leads on iOS requirement (12.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. TextMath sells 1 one-off in-app purchase. Key Calculator asks for nothing beyond the download.

## The numbers

| Metric | Key Calculator | TextMath |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 5 days |
| Size | 27 MB | 41 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [瑞勤 李](https://appshunter.io/developer/1401713785) | [MHOST LTD](https://appshunter.io/developer/1805479638) |

## What reviewers say

### Key Calculator

[App page](https://appshunter.io/ios/app/key-calculator/id6740821637)

**Features:** macOS Compatibility

**In-app purchases:** none


### TextMath

[App page](https://appshunter.io/ios/app/textmath/id6753336547)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Pages | $1.99 | one-time |


## Frequently asked questions

### Is Key Calculator free?

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

### Is TextMath free?

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

### Do Key Calculator or TextMath have ads?

Neither Key Calculator nor TextMath 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.*