# Sparrow Campus vs Pie Matrix

The clearest difference is ads: Sparrow Campus at none against Pie Matrix's shown. Pie Matrix's advantage is iOS requirement (15.1 vs 17.2). On price, 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 | Sparrow Campus | Pie Matrix |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | — |
| Size | 56 MB | 102 MB |
| Requires iOS | 17.2 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sparrow Campus](https://appshunter.io/developer/1646073181) | [Pie Matrix Innovations Private Limited](https://appshunter.io/developer/6775562989) |

## What reviewers say

### Sparrow Campus

[App page](https://appshunter.io/ios/app/sparrow-campus/id6443454668)

**Features:** macOS Compatibility

**In-app purchases:** none


### Pie Matrix

[App page](https://appshunter.io/ios/app/pie-matrix-sky-map/id6775562987)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sparrow Campus free?

Sparrow Campus is free to download, with no in-app purchases.

### Is Pie Matrix free?

Pie Matrix is free to download, with no in-app purchases.

### Do Sparrow Campus or Pie Matrix have ads?

Pie Matrix shows ads; Sparrow Campus 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.*