# Smart PDF Compressor vs PDF Compressor | Reduce Size

The clearest difference is in-app purchases: Smart PDF Compressor at none against PDF Compressor | Reduce Size's 3. Smart PDF Compressor also leads on update cadence (every 9 days vs every 3 weeks). On price, ads, device support and iOS requirement 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. Smart PDF Compressor asks for nothing beyond the download.

Smart PDF Compressor ships an update every 9 days, PDF Compressor | Reduce Size every 3 weeks. The most recent releases landed on October 2, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Smart PDF Compressor | PDF Compressor | Reduce Size |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Size | 1 MB | 23 MB |
| Requires iOS | 18.0 | **17.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Quan Dang](https://appshunter.io/developer/1868401962) | [KELVIN SENANU WALLACE](https://appshunter.io/developer/1888050842) |

## 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


### 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 Smart PDF Compressor free?

Smart PDF Compressor 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 Smart PDF Compressor or PDF Compressor | Reduce Size have ads?

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

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

Smart PDF Compressor ships an update every 9 days, and PDF Compressor | Reduce Size every 3 weeks. Most recently, Smart PDF Compressor was updated on October 2, 2026 and PDF Compressor | Reduce Size on October 6, 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.*