# Environmental Engineering PRO vs Feelix

The clearest difference is price: Feelix at Free against Environmental Engineering PRO's $0.49. Environmental Engineering PRO's advantage is iOS requirement (13.0 vs 17.0). On ads, in-app purchases and device support there is nothing between them.

Feelix is free to download; Environmental Engineering PRO costs $0.49 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Environmental Engineering PRO | Feelix |
| --- | --- | --- |
| Price | $0.49 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | — |
| Size | 23 MB | 20 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Manish Kumar](https://appshunter.io/developer/1854995154) | [Hanna Cherniakova](https://appshunter.io/developer/1699235619) |

## What reviewers say

### Environmental Engineering PRO

[App page](https://appshunter.io/ios/app/environmental-engineering-pro/id6759217834)

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

**In-app purchases:** none


### Feelix

[App page](https://appshunter.io/ios/app/feelix-learn-emotions/id6779101466)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Environmental Engineering PRO free?

Environmental Engineering PRO costs $0.49, with no in-app purchases.

### Is Feelix free?

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

### Do Environmental Engineering PRO or Feelix have ads?

Neither Environmental Engineering PRO nor Feelix 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.*