# PDF Compact vs PDF Compressor | Reduce Size

The clearest difference is in-app purchases: PDF Compact at none against PDF Compressor | Reduce Size's 3. PDF Compressor | Reduce Size's advantage is update cadence (every 3 weeks vs every 5 months) and iOS requirement (17.6 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. PDF Compressor | Reduce Size sells 3 in-app purchases, starting at $4.99 per 7 days. PDF Compact asks for nothing beyond the download.

PDF Compact ships an update every 5 months, PDF Compressor | Reduce Size every 3 weeks. The most recent releases landed on May 21, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | PDF Compact | PDF Compressor | Reduce Size |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Size | 22 MB | 23 MB |
| Requires iOS | 26.0 | **17.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Gerhard Lentschik](https://appshunter.io/developer/629988041) | [KELVIN SENANU WALLACE](https://appshunter.io/developer/1888050842) |

## What reviewers say

### PDF Compact

[App page](https://appshunter.io/ios/app/pdf-compact/id6757109481)

**Features:** macOS Compatibility

**In-app purchases:** none


### PDF Compressor | Reduce Size

[App page](https://appshunter.io/ios/app/pdf-compressor-reduce-size/id6761698467)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| All Access | $4.99 | per 7 days |
| All Access | $34.99 | per year |
| All Access Forever | $59.99 | one-time |


## Frequently asked questions

### Is PDF Compact free?

PDF Compact is free to download, with no in-app purchases.

### Is PDF Compressor | Reduce Size free?

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

### Do PDF Compact or PDF Compressor | Reduce Size have ads?

Neither PDF Compact nor PDF Compressor | Reduce Size shows ads.

### Which is updated more often, PDF Compact or PDF Compressor | Reduce Size?

PDF Compact ships an update every 5 months, and PDF Compressor | Reduce Size every 3 weeks. Most recently, PDF Compact was updated on May 21, 2026 and PDF Compressor | Reduce Size on September 18, 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.*