# Audio Mastering vs loudness CORRECT · Normalizer

The clearest difference is price: Audio Mastering at Free against loudness CORRECT · Normalizer's $17.99. loudness CORRECT · Normalizer's advantage is in-app purchases (none vs 6). On update cadence, ads, device support and iOS requirement there is nothing between them.

Audio Mastering is free to download; loudness CORRECT · Normalizer costs $17.99 up front. Audio Mastering sells 6 in-app purchases, starting at $9.99 per 7 days. loudness CORRECT · Normalizer asks for nothing beyond the download.

Audio Mastering ships an update fortnightly, loudness CORRECT · Normalizer every 2 weeks. The most recent releases landed on October 13, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Audio Mastering | loudness CORRECT · Normalizer |
| --- | --- | --- |
| Price | **Free** | $17.99 |
| Rating | **[4.6 (137 ratings)](https://appshunter.io/ios/app/audio-mastering-soundboost/id6745907940/reviews)** | — |
| Number of ratings | **137** | — |
| Positive reviews | 23.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 54 MB | 6 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [DIKTATORIAL Inc.](https://appshunter.io/developer/1814451861) | [Sascha Hoemske](https://appshunter.io/developer/1893424804) |

## What reviewers say

### Audio Mastering

[App page](https://appshunter.io/ios/app/audio-mastering-soundboost/id6745907940)

Instantly transform your music into professional, radio-ready masters using advanced AI. This tool analyzes your tracks and allows you to communicate desired sound adjustments through text prompts, offering unlimited revisions and a variety of professional audio effects.

**Highlights:** AI-powered music mastering, Text-to-mastering prompts, Unlimited revisions, Reference track mastering, Advanced EQ and compression, Loudness optimization, Export in multiple formats

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Mastering Weekly | $9.99 | per 7 days |
| Unlimited Plus Weekly | $14.99 | per 7 days |
| Unlimited Mastering Monthly | $17.99 | per month |
| Unlimited Plus Monthly | $24.99 | per month |
| Unlimited Mastering Yearly | $49.99 | per year |
| Unlimited Plus Annual | $71.00 | per year |


### loudness CORRECT · Normalizer

[App page](https://appshunter.io/ios/app/loudness-correct-normalizer/id6768704949)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Audio Mastering free?

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

### Is loudness CORRECT · Normalizer free?

loudness CORRECT · Normalizer costs $17.99, with no in-app purchases.

### Do Audio Mastering or loudness CORRECT · Normalizer have ads?

Neither Audio Mastering nor loudness CORRECT · Normalizer shows ads.

### Which is updated more often, Audio Mastering or loudness CORRECT · Normalizer?

Audio Mastering ships an update fortnightly, and loudness CORRECT · Normalizer every 2 weeks. Most recently, Audio Mastering was updated on October 13, 2026 and loudness CORRECT · Normalizer on October 1, 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.*