# Sound Monkey vs ProEye ACS

The clearest difference is update cadence: ProEye ACS at fortnightly against Sound Monkey's every 4 months. Sound Monkey's advantage is iOS requirement (12.0 vs 15.6). 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.

Sound Monkey ships an update every 4 months, ProEye ACS fortnightly. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Sound Monkey | ProEye ACS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Size | 65 MB | 14 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [National Foundation for the Deaf Inc](https://appshunter.io/developer/1485507281) | [AirNet](https://appshunter.io/developer/1321825811) |

## What reviewers say

### Sound Monkey

[App page](https://appshunter.io/ios/app/sound-monkey/id1485507282)

**Features:** macOS Compatibility

**In-app purchases:** none


### ProEye ACS

[App page](https://appshunter.io/ios/app/proeye-acs/id1585793586)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sound Monkey free?

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

### Is ProEye ACS free?

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

### Do Sound Monkey or ProEye ACS have ads?

Neither Sound Monkey nor ProEye ACS shows ads.

### Which is updated more often, Sound Monkey or ProEye ACS?

Sound Monkey ships an update every 4 months, and ProEye ACS fortnightly. Most recently, Sound Monkey was updated on October 26, 2026 and ProEye ACS on October 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*