# PDF Compressor vs Zip Unzip

The clearest difference is rating: Zip Unzip at 5.0 against PDF Compressor's 4.1. PDF Compressor's advantage is in-app purchases (none vs 1) and ratings volume (56 vs 2). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. Zip Unzip sells 1 one-off in-app purchase. PDF Compressor asks for nothing beyond the download.

Zip Unzip holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: PDF Compressor has 56 ratings behind it against 2, so its average is the more settled of the two.

PDF Compressor ships an update every 3 weeks, Zip Unzip monthly. The most recent releases landed on August 29, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | PDF Compressor | Zip Unzip |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (56 ratings)](https://appshunter.io/ios/app/pdf-compressor/id6446500701/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/zip-unzip/id6621264368/reviews)** |
| Number of ratings | **56** | 2 |
| Positive reviews | 18.2% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 3 MB | 0 MB |
| Requires iOS | **16.1** | 17.5 |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [HurryApp LTD](https://appshunter.io/developer/1562864305) | [Muhammed Efdal incesu](https://appshunter.io/developer/1748859357) |

## What reviewers say

### PDF Compressor

[App page](https://appshunter.io/ios/app/pdf-compressor/id6446500701)

This utility allows users to compress, merge, and share PDF documents efficiently. It provides a convenient way to manage your PDF files on the go.

**Highlights:** Compress PDF files, Merge PDF files, Share PDF files, Manage PDF documents, Mobile PDF utility

**Features:** Vision Pro support

**In-app purchases:** none


### Zip Unzip

[App page](https://appshunter.io/ios/app/zip-unzip/id6621264368)

Easily compress large files to save storage space or extract compressed archives for quick access. This app offers a straightforward interface for all your file management tasks.

**Highlights:** Compress files and folders, Extract zip archives, Save device storage, Intuitive interface, Manage file archives

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zip Unzip Lifetime Premium | $2.99 | one-time |


## Frequently asked questions

### Is PDF Compressor free?

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

### Is Zip Unzip free?

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

### Which has better reviews, PDF Compressor or Zip Unzip?

Zip Unzip is rated higher. PDF Compressor averages 4.1 out of 5 from 56 ratings, while Zip Unzip averages 5.0 from 2 ratings.

### Do PDF Compressor or Zip Unzip have ads?

Neither PDF Compressor nor Zip Unzip shows ads.

### Which is updated more often, PDF Compressor or Zip Unzip?

PDF Compressor ships an update every 3 weeks, and Zip Unzip monthly. Most recently, PDF Compressor was updated on August 29, 2026 and Zip Unzip on September 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.*