iPhone Screenshots


Improve the audio quality of your video for free. Most suitable for those who create videos with iPhone. Noise reduction, YouTube optimization, automated mastering are supported.

- Automated mastering
- YouTube optimization
- Noise reduction
- Sharing mastered video

## What's automated mastering
Mastering is the task of adjusting the sound. Mastering gives the power to sound.

We have been offering AI Mastering - automated online mastering service that is focused on music composers.

This time, we made a smartphone app version of AI Mastering for those who post videos using a smartphone.

## What is YouTube Optimization?
YouTube optimization is a feature to optimize sound according to YouTube loudness normalization specifications.

Loudness normalization is a feature to make the volume of videos constant. It is possible to prevent videos from being less impressive by too small volume.

Loudness normalization is also introduced on YouTube. However, if the volume of the original movie is too small on YouTube, the volume after loudness normalization will remain small.

With our app, videos are optimized so that the played volume on YouTube does not become smaller compared with other videos. You can prevent your video from losing power compared to other videos on YouTube.

## Manual

## Notes
· Please use in Wifi environment because the data traffic is large.

## About Web service version
The web service version of AI Mastering provides more features than the smartphone app version, so please try it if you are interested.

## Contact
Email: aimasteringcom@gmail.com

What’s New

Version 1.3.0

Added the function to share videos after mastering on SNS.
Reduced the amount of network transfer.

Ratings and Reviews

1.7 out of 5
3 Ratings

3 Ratings

Awesome($)($) ,


I can’t lie I do not actually know what this app does?? It did not change the sound of my video at all

Vincent Nguyen 99 ,

Really confused

I don’t know what to do. For some reason it doesn’t work


Shin Fukuse
62.4 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, German, Japanese, Portuguese, Simplified Chinese, Spanish, Turkish

Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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