# Rational Algebraic Expressions vs Grammar Flash

The clearest difference is device support: Rational Algebraic Expressions at 3 against Grammar Flash's 1. Rational Algebraic Expressions also leads on iOS requirement (12.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Rational Algebraic Expressions | Grammar Flash |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Weekly |
| Size | 31 MB | 3 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Science Education Institute](https://appshunter.io/developer/1439710468) | [Milan Tijmen Potters](https://appshunter.io/developer/1868352736) |

## What reviewers say

### Rational Algebraic Expressions

[App page](https://appshunter.io/ios/app/rational-algebraic-expressions/id6504674075)

**Features:** macOS Compatibility

**In-app purchases:** none


### Grammar Flash

[App page](https://appshunter.io/ios/app/grammar-flash/id6757699695)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Rational Algebraic Expressions free?

Rational Algebraic Expressions is free to download, with no in-app purchases.

### Is Grammar Flash free?

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

### Do Rational Algebraic Expressions or Grammar Flash have ads?

Neither Rational Algebraic Expressions nor Grammar Flash 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.*