# Human Digestive System vs e++ 3

The clearest difference is price: e++ 3 at Free against Human Digestive System's $0.99. e++ 3 also leads on iOS requirement (9.0 vs 12.0). On ads, in-app purchases and device support there is nothing between them.

e++ 3 is free to download; Human Digestive System costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Human Digestive System | e++ 3 |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | — |
| Size | 401 MB | 71 MB |
| Requires iOS | 12.0 | **9.0** |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [www.ajaxmediatech.com](https://appshunter.io/developer/973768003) | [Modern Educational Research Society, LTD](https://appshunter.io/developer/432268704) |

## What reviewers say

### Human Digestive System

[App page](https://appshunter.io/ios/app/human-digestive-system/id983535092)

**Features:** macOS Compatibility

**In-app purchases:** none


### e++ 3

[App page](https://appshunter.io/ios/app/e-plus-plus-3-d-figures/id1583900705)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Human Digestive System free?

Human Digestive System costs $0.99, with no in-app purchases.

### Is e++ 3 free?

e++ 3 is free to download, with no in-app purchases.

### Do Human Digestive System or e++ 3 have ads?

Neither Human Digestive System nor e++ 3 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.*