# PDF Compressor vs PDF Under

The clearest difference is update cadence: PDF Compressor at daily against PDF Under's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PDF Compressor sells 2 in-app purchases, starting at $1.99 per 7 days and PDF Under sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

PDF Compressor ships an update daily, PDF Under every 3 weeks. The most recent releases landed on October 8, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | PDF Compressor | PDF Under |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/pdf-compressor-easy-compress/id6754443632/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 3 weeks |
| Monetization | Free | — |
| Size | 12 MB | 3 MB |
| Requires iOS | **17** | 17.6 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Gabriele Pala](https://appshunter.io/developer/1798228799) | [Emre KABOGLU](https://appshunter.io/developer/1892627286) |

## What reviewers say

### PDF Compressor

[App page](https://appshunter.io/ios/app/pdf-compressor-easy-compress/id6754443632)

Reduce PDF file sizes quickly and privately on your device. Offers multiple compression levels and batch processing for efficient storage management and easy sharing. Works entirely offline without internet connection.

**Highlights:** Offline PDF compression, Multiple compression levels, Batch processing, Space savings tracker, Instant sharing, High-quality output

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $1.99 | per 7 days |
| Premium | $12.99 | one-time |


### PDF Under

[App page](https://appshunter.io/ios/app/pdf-under-pdf-compressor/id6804278677)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDF Under Weekly | $1.99 | per 7 days |
| PDF Under Yearly | $13.99 | per year |
| PDF Under Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is PDF Compressor free?

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

### Is PDF Under free?

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

### Do PDF Compressor or PDF Under have ads?

Neither PDF Compressor nor PDF Under shows ads.

### Which is updated more often, PDF Compressor or PDF Under?

PDF Compressor ships an update daily, and PDF Under every 3 weeks. Most recently, PDF Compressor was updated on October 8, 2026 and PDF Under on October 9, 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.*