# Guerin vs Useful Voice Changer

The clearest difference is update cadence: Useful Voice Changer at every 5 days against Guerin's every 6 months. Useful Voice Changer also leads on iOS requirement (15.6 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Guerin sells 1 in-app purchase, starting at $10.99 per month and Useful Voice Changer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Guerin ships an update every 6 months, Useful Voice Changer every 5 days. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Guerin | Useful Voice Changer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (7 ratings)](https://appshunter.io/ios/app/guerin/id6741745490/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 6 months | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 216 MB | 83 MB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [Chase Guerin](https://appshunter.io/developer/1795365802) | [katapu.net](https://appshunter.io/developer/381898924) |

## What reviewers say

### Guerin

[App page](https://appshunter.io/ios/app/guerin/id6741745490)

This app offers tools to creatively manipulate audio and video media, allowing users to adjust speed, pitch, and add effects. It fosters a community for sharing creations and discovering new content.

**Highlights:** Adjust media speed, Modify audio pitch, Add reverb effects, Share creations, Discover content, Community connection

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $10.99 | per month |


### Useful Voice Changer

[App page](https://appshunter.io/ios/app/useful-voice-changer/id6761814907)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Guerin free?

Guerin is free to download, with in-app purchases available.

### Is Useful Voice Changer free?

Useful Voice Changer is free to download, with in-app purchases available.

### Do Guerin or Useful Voice Changer have ads?

Both Guerin and Useful Voice Changer show ads.

### Which is updated more often, Guerin or Useful Voice Changer?

Guerin ships an update every 6 months, and Useful Voice Changer every 5 days. Most recently, Guerin was updated on October 30, 2026 and Useful Voice Changer on October 25, 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.*