# Sad Hippo Stickers vs Math Keyboard

The clearest difference is price: Math Keyboard at Free against Sad Hippo Stickers's $0.99. Sad Hippo Stickers's advantage is in-app purchases (none vs 1) and iOS requirement (16.0 vs 26.2). On ads and device support there is nothing between them.

Math Keyboard is free to download; Sad Hippo Stickers costs $0.99 up front. Math Keyboard sells 1 one-off in-app purchase. Sad Hippo Stickers asks for nothing beyond the download.

## The numbers

| Metric | Sad Hippo Stickers | Math Keyboard |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[3.4 (13 ratings)](https://appshunter.io/ios/app/math-keyboard-formula-input/id6757350527/reviews)** |
| Number of ratings | — | **13** |
| Positive reviews | — | 44.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 2 MB |
| Requires iOS | **16.0** | 26.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Paul Scott](https://appshunter.io/developer/1542422467) | [Yuta Nishimatsu](https://appshunter.io/developer/1480004995) |

## What reviewers say

### Sad Hippo Stickers

[App page](https://appshunter.io/ios/app/sad-hippo-stickers/id6479577331)

**In-app purchases:** none


### 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, Vision Pro support

**In-app purchases (1)**

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


## Frequently asked questions

### Is Sad Hippo Stickers free?

Sad Hippo Stickers costs $0.99, with no in-app purchases.

### Is Math Keyboard free?

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

### Do Sad Hippo Stickers or Math Keyboard have ads?

Neither Sad Hippo Stickers nor Math Keyboard 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.*