# MHY vs ACU Impact

The clearest difference is update cadence: ACU Impact at every 3 weeks against MHY's every 13 months. MHY's advantage is iOS requirement (10.0 vs 13.0). On price, ads, 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.

MHY ships an update every 13 months, ACU Impact every 3 weeks. The most recent releases landed on October 22, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | MHY | ACU Impact |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 6.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 21 MB | 87 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [FERNUS BILISIM HIZMETLERI EGI.DAN. ve TIC.LTD.STI.](https://appshunter.io/developer/927900317) | [ACIBADEM MEHMET ALI AYDINLAR UNIVERSITESI](https://appshunter.io/developer/6779962476) |

## What reviewers say

### MHY

[App page](https://appshunter.io/ios/app/mhy/id1357112046)

This free application allows users to view solutions to questions found in books. It provides a convenient way to check answers and deepen understanding of educational material.

**Highlights:** View question solutions, Access book answers, Free to use, Educational aid

**Features:** macOS Compatibility

**In-app purchases:** none


### ACU Impact

[App page](https://appshunter.io/ios/app/acu-impact/id6779962474)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MHY free?

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

### Is ACU Impact free?

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

### Do MHY or ACU Impact have ads?

Neither MHY nor ACU Impact shows ads.

### Which is updated more often, MHY or ACU Impact?

MHY ships an update every 13 months, and ACU Impact every 3 weeks. Most recently, MHY was updated on October 22, 2026 and ACU Impact on October 28, 2026.

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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.*