# Carly Operations vs PDF Compressor App

The clearest difference is in-app purchases: Carly Operations at none against PDF Compressor App's 1. Carly Operations also leads on device support (3 vs 1) and iOS requirement (15.0 vs 18.5). PDF Compressor App's advantage is update cadence (every 6 days vs monthly). On price and ads there is nothing between them.

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

Carly Operations ships an update monthly, PDF Compressor App every 6 days. The most recent releases landed on October 27, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Carly Operations | PDF Compressor App |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 6 days** |
| Monetization | — | Free with in-app purchases |
| Size | 110 MB | 8 MB |
| Requires iOS | **15.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Carly](https://appshunter.io/developer/1676230109) | [Kirti Arya](https://appshunter.io/developer/1828768620) |

## What reviewers say

### Carly Operations

[App page](https://appshunter.io/ios/app/carly-operations/id6737611744)

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

**In-app purchases:** none


### PDF Compressor App

[App page](https://appshunter.io/ios/app/pdf-compressor-app/id6757333509)

Reduce the size of PDF documents and images on your iPhone with this privacy-focused tool. Choose from three compression levels to balance file size and quality, and easily manage, save, or share your compressed files offline.

**Highlights:** Compress PDF documents, Compress images (JPG, PNG), Three compression levels, Offline functionality, Secure and private, Manage compressed files, Instant sharing

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Subscription | $0.99 | one-time |


## Frequently asked questions

### Is Carly Operations free?

Carly Operations is free to download, with no in-app purchases.

### Is PDF Compressor App free?

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

### Do Carly Operations or PDF Compressor App have ads?

Neither Carly Operations nor PDF Compressor App shows ads.

### Which is updated more often, Carly Operations or PDF Compressor App?

Carly Operations ships an update monthly, and PDF Compressor App every 6 days. Most recently, Carly Operations was updated on October 27, 2026 and PDF Compressor App on October 12, 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.*