# Smart PDF Compressor vs RedactPDF

The clearest difference is price: Smart PDF Compressor at Free against RedactPDF's $0.99. Smart PDF Compressor also leads on update cadence (every 9 days vs every 2 months). RedactPDF's advantage is iOS requirement (15.0 vs 18.0). On ads, in-app purchases and device support there is nothing between them.

Smart PDF Compressor is free to download; RedactPDF costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Smart PDF Compressor ships an update every 9 days, RedactPDF every 2 months. The most recent releases landed on October 2, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Smart PDF Compressor | RedactPDF |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 months |
| Size | 1 MB | 2 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Quan Dang](https://appshunter.io/developer/1868401962) | [lee xiaoming](https://appshunter.io/developer/978218329) |

## What reviewers say

### Smart PDF Compressor

[App page](https://appshunter.io/ios/app/smart-pdf-compressor-reduce/id6757997785)

**Features:** macOS Compatibility

**In-app purchases:** none


### RedactPDF

[App page](https://appshunter.io/ios/app/redactpdf-secure-redaction/id6758568914)

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

**In-app purchases:** none


## Frequently asked questions

### Is Smart PDF Compressor free?

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

### Is RedactPDF free?

RedactPDF costs $0.99, with no in-app purchases.

### Do Smart PDF Compressor or RedactPDF have ads?

Neither Smart PDF Compressor nor RedactPDF shows ads.

### Which is updated more often, Smart PDF Compressor or RedactPDF?

Smart PDF Compressor ships an update every 9 days, and RedactPDF every 2 months. Most recently, Smart PDF Compressor was updated on October 2, 2026 and RedactPDF on October 5, 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.*