# PDF Compressor ・ PDF Converter vs MailTrace

The clearest difference is in-app purchases: MailTrace at none against PDF Compressor ・ PDF Converter's 10. MailTrace also leads on ads (none vs shown). PDF Compressor ・ PDF Converter's advantage is update cadence (every 5 days vs every 2 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. PDF Compressor ・ PDF Converter sells 9 in-app purchases, starting at $4.99 per 7 days. MailTrace asks for nothing beyond the download.

PDF Compressor ・ PDF Converter ships an update every 5 days, MailTrace every 2 months. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | PDF Compressor ・ PDF Converter | MailTrace |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (70 ratings)](https://appshunter.io/ios/app/pdf-compressor-pdf-converter/id6742428142/reviews)** | — |
| Number of ratings | **70** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 41 MB | 1 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [RIJIPUPS OU](https://appshunter.io/developer/1594002879) | [玉东 娄](https://appshunter.io/developer/1896336427) |

## What reviewers say

### PDF Compressor ・ PDF Converter

[App page](https://appshunter.io/ios/app/pdf-compressor-pdf-converter/id6742428142)

Easily convert, scan, compress, and edit documents into PDFs. This tool offers smart camera features for accurate scanning, flexible compression options to save space, and the ability to merge or convert files. Keep your documents organized and secure with password protection.

**Highlights:** Convert photos, files, and scans to PDF, Smart camera for auto-detection and cropping, Compress PDFs with quality settings, Merge multiple PDFs, Convert PDFs to JPG or ZIP, Password protect sensitive documents, Edit and reorder PDF pages

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Converter PRO | $4.99 | per 7 days |
| PDF Converter PRO | $6.99 | per 7 days |
| PDF Converter PRO | $6.99 | per 7 days |
| PDF Converter PRO | $6.99 | per 7 days |
| PDF Converter PRO | $7.99 | per 7 days |
| PDF Converter PRO | $11.99 | per month |
| PDF Converter PRO | $19.99 | per month |
| PDF Converter PRO | $99.99 | per year |
| PDF Converter PRO | $119.99 | per year |


### MailTrace

[App page](https://appshunter.io/ios/app/mailtrace/id6769105347)

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

**In-app purchases:** none


## Frequently asked questions

### Is PDF Compressor ・ PDF Converter free?

PDF Compressor ・ PDF Converter is free to download, with in-app purchases available.

### Is MailTrace free?

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

### Do PDF Compressor ・ PDF Converter or MailTrace have ads?

PDF Compressor ・ PDF Converter shows ads; MailTrace does not.

### Which is updated more often, PDF Compressor ・ PDF Converter or MailTrace?

PDF Compressor ・ PDF Converter ships an update every 5 days, and MailTrace every 2 months. Most recently, PDF Compressor ・ PDF Converter was updated on October 9, 2026 and MailTrace on October 1, 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.*