# PDF Compressor vs CPTR Calculator

The clearest difference is in-app purchases: CPTR Calculator at none against PDF Compressor's 4. CPTR Calculator also leads on ads (none vs shown) and iOS requirement (13.0 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. CPTR Calculator asks for nothing beyond the download.

## The numbers

| Metric | PDF Compressor | CPTR Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cptr-calculator/id6791381310/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | — |
| Monetization | — | Free |
| Size | 46 MB | 18 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Zahid Hussain](https://appshunter.io/developer/1825488742) | [LOGAN ROCKY LAI](https://appshunter.io/developer/6791381312) |

## 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 |


### CPTR Calculator

[App page](https://appshunter.io/ios/app/cptr-calculator/id6791381310)

This app assists Marines in quickly calculating body composition and circumference measurements according to official Marine Corps orders. It provides fast, accurate results, handles performance-based exceptions, and works offline without ads or tracking.

**Highlights:** Body composition calculations, PFT/CFT exception handling, Male and female circumference tables, Outlier detection, Offline functionality, Dark mode support

**In-app purchases:** none


## Frequently asked questions

### Is PDF Compressor free?

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

### Is CPTR Calculator free?

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

### Do PDF Compressor or CPTR Calculator have ads?

PDF Compressor shows ads; CPTR Calculator 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.*