# CPU8 Pro vs VocalPDF

The clearest difference is iOS requirement: CPU8 Pro at 12.4 against VocalPDF's 17.6. 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.

## The numbers

| Metric | CPU8 Pro | VocalPDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/cpu8-pro/id1604002192/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Free | — |
| Size | 255 MB | 5 MB |
| Requires iOS | **12.4** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Cordova Bay Entertainment Group, Inc](https://appshunter.io/developer/1448776027) | [KEVIN COHEN](https://appshunter.io/developer/1779103524) |

## What reviewers say

### CPU8 Pro

[App page](https://appshunter.io/ios/app/cpu8-pro/id1604002192)

Explore the inner workings of modern computers with a simulated 8-bit processor. Learn about computer history, use a visual model to execute programs, and assemble your own code.

**Highlights:** Simulated 8-bit computer model (Intel 8085 based), History of computing content, Assembler manual and reference, Visual execution model of programs, Integrated assembler for creating programs, Links to Ben Eater's building instructions

**Features:** macOS Compatibility

**In-app purchases:** none


### VocalPDF

[App page](https://appshunter.io/ios/app/vocalpdf/id6754463479)

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

**In-app purchases:** none


## Frequently asked questions

### Is CPU8 Pro free?

CPU8 Pro is free to download, with no in-app purchases.

### Is VocalPDF free?

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

### Do CPU8 Pro or VocalPDF have ads?

Neither CPU8 Pro nor VocalPDF shows ads.

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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.*