# Dalidoc PDF vs PDF Compression

The clearest difference is in-app purchases: Dalidoc PDF at none against PDF Compression's 1. Dalidoc PDF also leads on ads (none vs shown) and iOS requirement (13.0 vs 18.5). PDF Compression's advantage is update cadence (every 4 days vs every 3 months). On price, review sentiment and device support there is nothing between them.

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

Dalidoc PDF ships an update every 3 months, PDF Compression every 4 days. The most recent releases landed on October 2, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Dalidoc PDF | PDF Compression |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/pdf-compression/id6752516285/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 63 MB | 19 MB |
| Requires iOS | **13.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Anouar idali](https://appshunter.io/developer/1774829231) | [Antonio Gonzalez de la aleja german](https://appshunter.io/developer/1839645711) |

## What reviewers say

### Dalidoc PDF

[App page](https://appshunter.io/ios/app/dalidoc-pdf/id6737143342)

Manage your PDF files with this intuitive application. Read, secure, compress, merge, and sign documents quickly and efficiently. Boost your productivity with powerful tools for PDF manipulation directly on your mobile device.

**Highlights:** Read PDFs, Secure PDFs, Compress PDFs, Merge PDFs, Sign PDFs, Intuitive interface

**Features:** macOS Compatibility

**In-app purchases:** none


### PDF Compression

[App page](https://appshunter.io/ios/app/pdf-compression/id6752516285)

Easily reduce the size of your PDF files without sacrificing quality. This tool is perfect for students and professionals needing to optimize documents for storage, email, or sharing. Compress multiple files quickly and efficiently.

**Highlights:** Compress PDFs for free, Reduce file size to specific megabytes, Optimize documents for email and sharing, Compress multiple PDFs at once, Maintain document quality during compression, Convert PDFs to ZIP format

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Dalidoc PDF free?

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

### Is PDF Compression free?

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

### Do Dalidoc PDF or PDF Compression have ads?

PDF Compression shows ads; Dalidoc PDF does not.

### Which is updated more often, Dalidoc PDF or PDF Compression?

Dalidoc PDF ships an update every 3 months, and PDF Compression every 4 days. Most recently, Dalidoc PDF was updated on October 2, 2026 and PDF Compression 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.*