# PDF Compressor vs Pdf24

The clearest difference is rating: PDF Compressor at 4.6 against Pdf24's 2.3. PDF Compressor also leads on in-app purchases (none vs 2) and review sentiment (26% vs 0%). Pdf24's advantage is update cadence (monthly vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Pdf24 sells 2 in-app purchases, starting at $9.99 per 7 days. PDF Compressor asks for nothing beyond the download.

PDF Compressor holds the better App Store score, 4.6 against 2.3. That said, the two scores are not equally well evidenced: PDF Compressor has 813 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 26% of PDF Compressor's written reviews are positive against 0% of Pdf24's.

PDF Compressor ships an update every 2 months, Pdf24 monthly. The most recent releases landed on September 30, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | PDF Compressor | Pdf24 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (813 ratings)](https://appshunter.io/ios/app/pdf-compressor-compress-pdf/id1637213307/reviews)** | [2.3 (3 ratings)](https://appshunter.io/ios/app/pdf24/id6780348502/reviews) |
| Number of ratings | **813** | 3 |
| Positive reviews | **26.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 11 MB | 23 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Vishalbhai Vaghasiya](https://appshunter.io/developer/1512628511) | [Priyankaben Rupavatiya](https://appshunter.io/developer/1893593703) |

## 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


### Pdf24

[App page](https://appshunter.io/ios/app/pdf24/id6780348502)

Transform your device into a high-quality document scanner. Easily capture, organize, and share PDFs of receipts, invoices, and important papers. Features smart cropping and enhancement for better readability.

**Highlights:** Scan documents with camera, Create high-quality PDFs, Auto edge detection and cropping, Enhance scan readability, Organize and share documents, Secure document management

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $9.99 | per 7 days |
| Lifetime | $24.99 | one-time |


## Frequently asked questions

### Is PDF Compressor free?

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

### Is Pdf24 free?

Pdf24 is free to download, with in-app purchases available.

### Which has better reviews, PDF Compressor or Pdf24?

PDF Compressor is rated higher. PDF Compressor averages 4.6 out of 5 from 813 ratings, while Pdf24 averages 2.3 from 3 ratings.

### Do PDF Compressor or Pdf24 have ads?

Both PDF Compressor and Pdf24 show ads.

### Which is updated more often, PDF Compressor or Pdf24?

PDF Compressor ships an update every 2 months, and Pdf24 monthly. Most recently, PDF Compressor was updated on September 30, 2026 and Pdf24 on September 24, 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.*