# Rectangles & Primes vs Dissimilar Rational Algebraic

The clearest difference is iOS requirement: Dissimilar Rational Algebraic at 12.0 against Rectangles & Primes's 15.0. On price, ads, in-app purchases and device support 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 | Rectangles & Primes | Dissimilar Rational Algebraic |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Size | 10 MB | 30 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Johannes Charra](https://appshunter.io/developer/1557733427) | [Science Education Institute](https://appshunter.io/developer/1439710468) |

## What reviewers say

### Rectangles & Primes

[App page](https://appshunter.io/ios/app/rectangles-and-primes/id1572074176)

**Features:** macOS Compatibility

**In-app purchases:** none


### Dissimilar Rational Algebraic

[App page](https://appshunter.io/ios/app/dissimilar-rational-algebraic/id6740739636)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Rectangles & Primes free?

Rectangles & Primes is free to download, with no in-app purchases.

### Is Dissimilar Rational Algebraic free?

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

### Do Rectangles & Primes or Dissimilar Rational Algebraic have ads?

Neither Rectangles & Primes nor Dissimilar Rational Algebraic 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.*