# Top Scanner vs PDF Compressor

The clearest difference is in-app purchases: PDF Compressor at none against Top Scanner's 4. PDF Compressor also leads on ratings volume (813 vs 8). Top Scanner's advantage is rating (5.0 vs 4.6) and iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Top Scanner sells 4 in-app purchases, starting at $3.99 per month. PDF Compressor asks for nothing beyond the download.

Top Scanner holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: PDF Compressor has 813 ratings behind it against 8, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 5, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Top Scanner | PDF Compressor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/top-scanner-smart-pdf-scanner/id1605519446/reviews)** | [4.6 (813 ratings)](https://appshunter.io/ios/app/pdf-compressor-compress-pdf/id1637213307/reviews) |
| Number of ratings | 8 | **813** |
| Positive reviews | — | 26.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 154 MB | 11 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TongSoft Information Co., Ltd.](https://appshunter.io/developer/1522822281) | [Vishalbhai Vaghasiya](https://appshunter.io/developer/1512628511) |

## What reviewers say

### Top Scanner

[App page](https://appshunter.io/ios/app/top-scanner-smart-pdf-scanner/id1605519446)

This app allows you to scan documents, extract text, edit PDFs, and add electronic signatures. It offers features like auto border detection, image enhancement, and cloud backup for your scanned files.

**Highlights:** Document scanning, Image text extraction and recognition (OCR), PDF content editing, PDF splitting and merging, Electronic signatures, Auto border detection, Cloud backup

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 month subscription | $3.99 | per month |
| 1 year subscription | $29.99 | per year |
| OCR 200 Pages | $2.99 | one-time |
| OCR  1000 Pages | $9.99 | one-time |


### 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


## Frequently asked questions

### Is Top Scanner free?

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

### Is PDF Compressor free?

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

### Which has better reviews, Top Scanner or PDF Compressor?

Top Scanner is rated higher. Top Scanner averages 5.0 out of 5 from 8 ratings, while PDF Compressor averages 4.6 from 813 ratings.

### Do Top Scanner or PDF Compressor have ads?

Both Top Scanner and PDF Compressor show ads.

### Which is updated more often, Top Scanner or PDF Compressor?

Top Scanner ships an update every 2 months, and PDF Compressor every 2 months. Most recently, Top Scanner was updated on October 5, 2026 and PDF Compressor on October 17, 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.*