# PDF Compressor vs plaiiin Light

The clearest difference is in-app purchases: plaiiin Light at none against PDF Compressor's 3. plaiiin Light also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. PDF Compressor sells 3 in-app purchases, starting at $2.99 per month. plaiiin Light asks for nothing beyond the download.

PDF Compressor ships an update every 3 weeks, plaiiin Light monthly. The most recent releases landed on October 13, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | PDF Compressor | plaiiin Light |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 31 MB | 6 MB |
| Requires iOS | **16.2** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Swetha MB](https://appshunter.io/developer/599426588) | [plaiiin GmbH](https://appshunter.io/developer/1894706504) |

## What reviewers say

### PDF Compressor

[App page](https://appshunter.io/ios/app/pdf-compressor-editor-and-tools/id6756212575)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Photo PDF functionality | $2.99 | per month |
| Unlock All Photo PDF functionality | $9.99 | per 6 months |
| Unlock All Photo PDF functionality | $14.99 | per year |


### plaiiin Light

[App page](https://appshunter.io/ios/app/plaiiin-light/id6787092509)

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

**In-app purchases:** none


## Frequently asked questions

### Is PDF Compressor free?

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

### Is plaiiin Light free?

plaiiin Light is free to download, with no in-app purchases.

### Do PDF Compressor or plaiiin Light have ads?

PDF Compressor shows ads; plaiiin Light does not.

### Which is updated more often, PDF Compressor or plaiiin Light?

PDF Compressor ships an update every 3 weeks, and plaiiin Light monthly. Most recently, PDF Compressor was updated on October 13, 2026 and plaiiin Light on October 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*