# Pi vs SectionLab

The clearest difference is ads: Pi at none against SectionLab'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 | Pi | SectionLab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 days | — |
| Size | 4 MB | 6 MB |
| Requires iOS | 17.6 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Olivier Mallet](https://appshunter.io/developer/1884261967) | [大臻 黄](https://appshunter.io/developer/1805041784) |

## What reviewers say

### Pi

[App page](https://appshunter.io/ios/app/pi-infinite-digits/id6760476465)

**Features:** macOS Compatibility

**In-app purchases:** none


### SectionLab

[App page](https://appshunter.io/ios/app/sectionlab-3d-geometry-lab/id6773945561)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Pi free?

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

### Is SectionLab free?

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

### Do Pi or SectionLab have ads?

SectionLab shows ads; Pi 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.*