# PDF Compressor * Compress PDF vs Calm PDF Image Toolkit

PDF Compressor * Compress PDF and Calm PDF Image Toolkit are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. PDF Compressor * Compress PDF sells 3 in-app purchases, starting at $3.99 per month and Calm PDF Image Toolkit sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | PDF Compressor * Compress PDF | Calm PDF Image Toolkit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pdf-compressor-compress-pdf/id6753728349/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Monetization | Free with in-app purchases | — |
| Size | 14 MB | 54 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kamalkumar Trapasiya](https://appshunter.io/developer/1587617174) | [Gokhan Alp Atar](https://appshunter.io/developer/1793941932) |

## What reviewers say

### PDF Compressor * Compress PDF

[App page](https://appshunter.io/ios/app/pdf-compressor-compress-pdf/id6753728349)

Reduce PDF file sizes quickly and easily, saving storage and speeding up sharing. Manage, preview, and organize your documents with multiple compression options and a user-friendly interface. Keep your files private and accessible.

**Highlights:** Compress single or multiple PDFs, Three compression levels, Preview before and after compression, Import from Files, iCloud, or other apps, Rename files for organization, Share via AirDrop, email, etc.

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Access | $3.99 | per month |
| Yearly Access | $9.99 | per year |
| Lifetime Access | $19.99 | one-time |


### Calm PDF Image Toolkit

[App page](https://appshunter.io/ios/app/calm-pdf-image-toolkit/id6759302493)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calm PDF Pro | $2.99 | per month |
| Calm PDF Pro | $19.99 | per year |
| Calm PDF Pro — Lifetime | $39.99 | one-time |


## Frequently asked questions

### Is PDF Compressor * Compress PDF free?

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

### Is Calm PDF Image Toolkit free?

Calm PDF Image Toolkit is free to download, with in-app purchases available.

### Do PDF Compressor * Compress PDF or Calm PDF Image Toolkit have ads?

Neither PDF Compressor * Compress PDF nor Calm PDF Image Toolkit shows ads.

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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.*