Guerin vs Useful Voice Changer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Guerin
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.
- Adjust media speed
- Modify audio pitch
- Add reverb effects
- Share creations
- Discover content
- Community connection
Read full descriptionHide full description
Welcome to Guerin, your new home for creativity and complete control over your media. Slow it down, add reverb, pitch it up—make it yours. Share, discover, and connect with a community moving culture forward through creativity and expression. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.guerinapp.com/privacy-policy
Useful Voice Changer
Read full descriptionHide full description
A handy app for changing the voice in videos is here! This app lets you easily transform the audio in a video you choose and save it as a new video with a different voice. It's perfect when you want to change the impression of a voice or avoid using the original voice as it is. After selecting a video, you can adjust "Voice Type", "Pitch", and "Timbre", then preview the converted audio before creating the video. You can also set the "Start Time" and listen to the part you care about first, so you can fine-tune the result with confidence. Converted videos can be saved to your Camera Roll or to Files. It's useful when you want to change the feel of a talking video, adjust the voice before posting to social media, or keep a video while making the original voice a little less recognizable. From importing a video to previewing, generating, and saving, everything follows a simple and easy-to-understand flow. Video and audio processing are performed on your device, so you can review the result locally as you work. 【How to use】 1. Tap "Select Video" and choose the video you want to convert. 2. Adjust "Voice Type", "Pitch", and "Timbre", and set "Start Time" if needed. 3. Tap "Play Voice Preview" to hear the converted audio. 4. Tap "Generate Video with This Voice" to create the converted video. 5. On the confirmation screen after generation, check the result and tap "Save to Camera Roll" or "Save to Files" to save it. If you want an easy way to change the voice in your videos, give this app a try.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Guerin | Useful Voice Changer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (7 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 6 months | Every 5 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 216 MB | 83 MB |
| Age rating | 12+ | 17+ |
| Developer | Chase Guerin | katapu.net |
In-app purchases
Guerin
- Premium Monthly$10.991 Month
Useful Voice Changer
- Remove Ads$2.99
Questions
Is Guerin free?
Is Useful Voice Changer free?
Do Guerin or Useful Voice Changer have ads?
Which is updated more often, Guerin or Useful Voice Changer?
Other comparisons















