# A2io vs Z80CPM

The clearest difference is update cadence: Z80CPM at every 10 days against A2io's every 43 months. A2io's advantage is iOS requirement (12.0 vs 15.0). 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.

A2io ships an update every 43 months, Z80CPM every 10 days. The most recent releases landed on October 10, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | A2io | Z80CPM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/z80cpm/id6756590871/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 43 months | **Every 10 days** |
| Monetization | — | Free |
| Size | 35 MB | 1 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Aaron Reid](https://appshunter.io/developer/1535274665) | [Aaron Wohl](https://appshunter.io/developer/1860336063) |

## What reviewers say

### A2io

[App page](https://appshunter.io/ios/app/a2io/id1535274663)

**In-app purchases:** none


### Z80CPM

[App page](https://appshunter.io/ios/app/z80cpm/id6756590871)

Experience the classic CP/M operating system on your iOS or Mac device with a full Z80 processor emulator. Run authentic CP/M software, including operating systems, word processors, programming languages, and text adventures. Works offline with support for multiple disk images.

**Highlights:** Full Z80 emulation, VT100 terminal support, Multiple disk image mounting, Offline functionality, Native Mac support, Downloadable CP/M disk images

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is A2io free?

A2io is free to download, with no in-app purchases.

### Is Z80CPM free?

Z80CPM is free to download, with no in-app purchases.

### Do A2io or Z80CPM have ads?

Neither A2io nor Z80CPM shows ads.

### Which is updated more often, A2io or Z80CPM?

A2io ships an update every 43 months, and Z80CPM every 10 days. Most recently, A2io was updated on October 10, 2026 and Z80CPM 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.*