# Smart PDF Compressor vs TYH FPV

The clearest difference is update cadence: Smart PDF Compressor at every 9 days against TYH FPV's every 6 weeks. TYH FPV's advantage is iOS requirement (15.6 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Smart PDF Compressor ships an update every 9 days, TYH FPV every 6 weeks. The most recent releases landed on October 2, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Smart PDF Compressor | TYH FPV |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 6 weeks |
| Size | 1 MB | 35 MB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Quan Dang](https://appshunter.io/developer/1868401962) | [Shenzhen Yilushi Technology Co.,ltd](https://appshunter.io/developer/1760309976) |

## 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


### TYH FPV

[App page](https://appshunter.io/ios/app/tyh-fpv/id6760937026)

**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 TYH FPV free?

TYH FPV is free to download, with no in-app purchases.

### Do Smart PDF Compressor or TYH FPV have ads?

Neither Smart PDF Compressor nor TYH FPV shows ads.

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

Smart PDF Compressor ships an update every 9 days, and TYH FPV every 6 weeks. Most recently, Smart PDF Compressor was updated on October 2, 2026 and TYH FPV on September 30, 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.*