# PDFAll vs Audio Compressor

The clearest difference is review sentiment: PDFAll at 100% against Audio Compressor's 0%. PDFAll also leads on rating (4.8 vs 3.0) and ratings volume (18 vs 2). Audio Compressor's advantage is in-app purchases (none vs 3). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. PDFAll sells 3 in-app purchases, starting at $0.99 per 7 days. Audio Compressor asks for nothing beyond the download.

PDFAll holds the better App Store score, 4.8 against 3.0. That said, the two scores are not equally well evidenced: PDFAll has 18 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of PDFAll's written reviews are positive against 0% of Audio Compressor's.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on September 14, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | PDFAll | Audio Compressor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (18 ratings)](https://appshunter.io/ios/app/pdfall/id6745859168/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/audio-compressor-mp3-reducer/id6748247625/reviews) |
| Number of ratings | **18** | 2 |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Weekly | Weekly |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 52 MB | 55 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [安徽和分期网络科技有限公司](https://appshunter.io/developer/1191410115) | [Suman Sharma](https://appshunter.io/developer/1815967200) |

## What reviewers say

### PDFAll

[App page](https://appshunter.io/ios/app/pdfall/id6745859168)

This app provides a comprehensive suite of tools for managing PDF documents. It allows users to create, edit, scan, and organize PDFs with features like OCR technology and cloud sharing. It also offers design templates and wallpapers.

**Highlights:** Create PDFs from images, text, or Word docs, Advanced PDF editing tools, Scan documents with OCR, Merge, compress, and split PDFs, Share and collaborate via iCloud, Intuitive file management, Design templates and wallpapers

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly subscription | $0.99 | per 7 days |
| Monthly subscription | $2.99 | per month |
| Annual subscription | $9.99 | per year |


### Audio Compressor

[App page](https://appshunter.io/ios/app/audio-compressor-mp3-reducer/id6748247625)

Easily reduce the size of audio files like MP3, M4A, AAC, and WAV without sacrificing quality. This app offers batch processing, preview options, and various compression settings to save space and share audio faster.

**Highlights:** Compress multiple audio files, Preview before and after compression, Adjust compression level and bitrate, Apply fade in/out effects, Mono/Stereo conversion, Volume normalization, Batch processing

**In-app purchases:** none


## Frequently asked questions

### Is PDFAll free?

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

### Is Audio Compressor free?

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

### Which has better reviews, PDFAll or Audio Compressor?

PDFAll is rated higher. PDFAll averages 4.8 out of 5 from 18 ratings, while Audio Compressor averages 3.0 from 2 ratings.

### Do PDFAll or Audio Compressor have ads?

Both PDFAll and Audio Compressor show ads.

### Which is updated more often, PDFAll or Audio Compressor?

PDFAll ships an update weekly, and Audio Compressor weekly. Most recently, PDFAll was updated on September 14, 2026 and Audio Compressor on September 21, 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.*