# PDF Compressor vs Swiss Umef LMS

The clearest difference is in-app purchases: Swiss Umef LMS at none against PDF Compressor's 4. Swiss Umef LMS also leads on ads (none vs shown) and iOS requirement (12.0 vs 17.0). On price and device support there is nothing between them.

Both are free to download. PDF Compressor sells 4 in-app purchases, starting at $5.99 per 7 days. Swiss Umef LMS asks for nothing beyond the download.

## The numbers

| Metric | PDF Compressor | Swiss Umef LMS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 10 days | — |
| Size | 33 MB | 43 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Zahid Hussain](https://appshunter.io/developer/1825488742) | [KABIROU AMADOU TAHIROU](https://appshunter.io/developer/1836841995) |

## What reviewers say

### PDF Compressor

[App page](https://appshunter.io/ios/app/pdf-compressor-merge-split/id6748366278)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $5.99 | per 7 days |
| Monthly Plan | $12.99 | per month |
| Yearly Plan | $24.99 | per year |
| Yearly Trial Plan | $29.99 | per year |


### Swiss Umef LMS

[App page](https://appshunter.io/ios/app/swiss-umef-lms/id6751791643)

**In-app purchases:** none


## Frequently asked questions

### Is PDF Compressor free?

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

### Is Swiss Umef LMS free?

Swiss Umef LMS is free to download, with no in-app purchases.

### Do PDF Compressor or Swiss Umef LMS have ads?

PDF Compressor shows ads; Swiss Umef LMS 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.*