# MP3Gain vs Volume Booster

MP3Gain and Volume Booster are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. MP3Gain sells 6 in-app purchases, starting at $1.99 per month and Volume Booster sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | MP3Gain | Volume Booster |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 13.8% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | — |
| Monetization | Free with in-app purchases | — |
| Size | 18 MB | 191 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | +4 | 4+ |
| Developer | [SEASOFT LTD.](https://appshunter.io/developer/456906339) | [Phuc Tran](https://appshunter.io/developer/1856846109) |

## What reviewers say

### MP3Gain

[App page](https://appshunter.io/ios/app/mp3gain-audio-normalization/id697885500)

This app normalizes the volume of your audio files, ensuring consistent loudness across songs, podcasts, and uploads. It offers multiple analysis modes and presets for easy use, with batch processing for multiple files. Listen to comparisons before exporting to maintain audio quality and metadata.

**Highlights:** Volume normalization, Multiple analysis modes (Peak, RMS, EBU R128), Built-in and custom presets, Batch processing, Listen before export, Preserves metadata and album art, Supports MP3, FLAC, M4A, WAV, AIFF, OGG

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MP3Gain Premium Monthly Plan | $1.99 | per month |
| MP3Gain Pro(Yearly) | $9.99 | per year |
| WMA Gain | $6.99 | one-time |
| MP3, M4A Gain | $6.99 | one-time |
| Gain all audio format | $9.99 | one-time |
| MP3Gain Pro (Lifetime) | $19.99 | one-time |


### Volume Booster

[App page](https://appshunter.io/ios/app/volume-booster-basssora/id6811754444)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $4.99 | per 7 days |
| Yearly Premium | $29.99 | per year |


## Frequently asked questions

### Is MP3Gain free?

MP3Gain is free to download, with in-app purchases available.

### Is Volume Booster free?

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

### Do MP3Gain or Volume Booster have ads?

Neither MP3Gain nor Volume Booster shows ads.

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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.*