# Audio Compressor vs MP3 Converter

Audio Compressor and MP3 Converter both sit at 4.6 stars, but that hides the real split: 83% of MP3 Converter's written reviews are positive against 56% of Audio Compressor's. MP3 Converter also leads on update cadence (every 3 days vs weekly). Audio Compressor's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 17.6). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Audio Compressor sells 1 one-off in-app purchase and MP3 Converter sells 4 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.6 for Audio Compressor against 4.7 for MP3 Converter. Both are backed by a comparable volume of ratings — 246 and 97 respectively. Written reviews are what separate them: 56% of Audio Compressor's written reviews are positive against 83% of MP3 Converter's.

Audio Compressor ships an update weekly, MP3 Converter every 3 days. The most recent releases landed on September 25, 2026 and August 26, 2026 respectively.

## The numbers

| Metric | Audio Compressor | MP3 Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (246 ratings)](https://appshunter.io/ios/app/audio-compressor-mp3-shrink/id6449499993/reviews) | **[4.7 (97 ratings)](https://appshunter.io/ios/app/mp3-converter-mp3convertkit/id6740282944/reviews)** |
| Number of ratings | **246** | 97 |
| Positive reviews | 55.6% of reviews | **83.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 19 MB | 12 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Arthur Eduardo Skaetta Alvarez Desenvolvimento de Software LTDA.](https://appshunter.io/developer/867175889) | [Erkan Sevim](https://appshunter.io/developer/1759171363) |

## What reviewers say

### Audio Compressor

[App page](https://appshunter.io/ios/app/audio-compressor-mp3-shrink/id6449499993)

Reduce audio file sizes without sacrificing sound quality. This app offers efficient compression, allowing you to reclaim storage space on your device. Easily compress audio from files or videos with offline processing.

**Highlights:** Efficient audio compression, Reduce file sizes without quality loss, Compress audio from files or videos, Fast and easy to use, Offline processing for privacy, Adjust bitrate and remove metadata

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Audio Compressor Premium | $0.99 | one-time |


### MP3 Converter

[App page](https://appshunter.io/ios/app/mp3-converter-mp3convertkit/id6740282944)

Extract audio from videos and convert it to MP3 format. Enhance your sound with bass boost, fade, reverb, and equalizer effects. Create custom ringtones from your favorite audio clips.

**Highlights:** Video to MP3 converter, Bass boost, Fade in/out effects, Reverb effect, Equalizer, Ringtone maker

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access | $2.99 | per 7 days |
| All Access | $4.99 | per 7 days |
| All Access | $9.99 | per year |
| All Access | $14.99 | per year |


## Frequently asked questions

### Is Audio Compressor free?

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

### Is MP3 Converter free?

MP3 Converter is free to download, with in-app purchases available.

### Which has better reviews, Audio Compressor or MP3 Converter?

MP3 Converter is rated higher. Audio Compressor averages 4.6 out of 5 from 246 ratings, while MP3 Converter averages 4.7 from 97 ratings.

### Do Audio Compressor or MP3 Converter have ads?

Neither Audio Compressor nor MP3 Converter shows ads.

### Which is updated more often, Audio Compressor or MP3 Converter?

Audio Compressor ships an update weekly, and MP3 Converter every 3 days. Most recently, Audio Compressor was updated on September 25, 2026 and MP3 Converter on August 26, 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.*