# Listening Science vs Rectangles & Primes

The clearest difference is ads: Rectangles & Primes at none against Listening Science's shown. On price, in-app purchases, device support and iOS requirement 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 | Listening Science | Rectangles & Primes |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | — | Every 3 weeks |
| Size | 10 MB | 10 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Hiroshi Sakai](https://appshunter.io/developer/1570983069) | [Johannes Charra](https://appshunter.io/developer/1557733427) |

## What reviewers say

### Listening Science

[App page](https://appshunter.io/ios/app/listening-science/id1570983067)

**Features:** macOS Compatibility

**In-app purchases:** none


### Rectangles & Primes

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Listening Science free?

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

### Is Rectangles & Primes free?

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

### Do Listening Science or Rectangles & Primes have ads?

Listening Science shows ads; Rectangles & Primes does not.

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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.*