# PDF Crisp View vs Voice Fast

The clearest difference is ads: PDF Crisp View at none against Voice Fast's shown. Voice Fast's advantage is iOS requirement (13.0 vs 16.6). On price, 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.

## The numbers

| Metric | PDF Crisp View | Voice Fast |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | — |
| Size | 75 MB | 72 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Running River Network Technology Limited](https://appshunter.io/developer/1804246053) | [Ashore Limited](https://appshunter.io/developer/6785806448) |

## What reviewers say

### PDF Crisp View

[App page](https://appshunter.io/ios/app/pdf-crisp-view-scannermaker/id6754379195)

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

**In-app purchases:** none


### Voice Fast

[App page](https://appshunter.io/ios/app/voice-fast/id6803459462)

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

**In-app purchases:** none


## Frequently asked questions

### Is PDF Crisp View free?

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

### Is Voice Fast free?

Voice Fast is free to download, with no in-app purchases.

### Do PDF Crisp View or Voice Fast have ads?

Voice Fast shows ads; PDF Crisp View does not.

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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.*