# PDF Compressor vs Audio Compressor

The clearest difference is in-app purchases: PDF Compressor at none against Audio Compressor's 1. PDF Compressor also leads on iOS requirement (15.0 vs 18.6). Audio Compressor's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Audio Compressor sells 1 one-off in-app purchase. PDF Compressor asks for nothing beyond the download.

## The numbers

| Metric | PDF Compressor | Audio Compressor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (813 ratings)](https://appshunter.io/ios/app/pdf-compressor-compress-pdf/id1637213307/reviews)** | — |
| Number of ratings | **813** | — |
| Positive reviews | 26.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | — |
| Monetization | Ad-supported | — |
| Size | 11 MB | 25 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Vishalbhai Vaghasiya](https://appshunter.io/developer/1512628511) | [Antonio Gonzalez de la aleja german](https://appshunter.io/developer/1839645711) |

## What reviewers say

### PDF Compressor

[App page](https://appshunter.io/ios/app/pdf-compressor-compress-pdf/id1637213307)

Reduce the size of your PDF documents with this easy-to-use tool. Select your file, choose the desired output quality, and compress your PDFs with a single tap. Save disk space and speed up uploads and downloads.

**Highlights:** Compress PDF files, Reduce PDF file size, Select output PDF quality, Easy-to-use interface, Single-tap compression

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Fast and efficient compression
- 👍 Simple and easy-to-use interface
- 💰 Free to download and use
- ✅ Effective file size reduction
- 📧 Solves email attachment size issues

**What reviewers complain about**

- 📢 Excessive and intrusive advertisements
- 🐛 Frequent app crashes and glitches
- ❌ File compression increases size instead of reducing it
- 🔄 App requires restart after each compression
- ⚠️ Suspicious ad permissions and potential security concerns

**Reported bugs**

- App crashes on second compression attempt
- File size increases instead of decreasing
- App exits unexpectedly after compression
- Compressed file unrecognizable or corrupted
- Keyboard numbers display as blank

**Requested features**

- Reduce or eliminate advertisements
- Add compression quality/control settings
- Batch file compression capability
- Improved preview functionality for multiple documents
- Better file naming conventions for compressed files


### Audio Compressor

[App page](https://appshunter.io/ios/app/audio-compressor-mp3-m4a/id6762345230)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is PDF Compressor free?

PDF Compressor is free to download, with no in-app purchases.

### Is Audio Compressor free?

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

### Do PDF Compressor or Audio Compressor have ads?

PDF Compressor shows ads; Audio Compressor does not.

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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.*