# PromoKit vs Z80CPM

The clearest difference is in-app purchases: Z80CPM at none against PromoKit's 1. Z80CPM also leads on device support (4 vs 2) and iOS requirement (15.0 vs 18.0). PromoKit's advantage is update cadence (daily vs every 10 days). On price and ads there is nothing between them.

Both are free to download. PromoKit sells 1 one-off in-app purchase. Z80CPM asks for nothing beyond the download.

PromoKit ships an update daily, Z80CPM every 10 days. The most recent releases landed on September 16, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | PromoKit | Z80CPM |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/z80cpm/id6756590871/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Daily** | Every 10 days |
| Monetization | — | Free |
| Size | 19 MB | 1 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Jan Armbrust](https://appshunter.io/developer/1508721475) | [Aaron Wohl](https://appshunter.io/developer/1860336063) |

## What reviewers say

### PromoKit

[App page](https://appshunter.io/ios/app/promokit/id6739035369)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Lifetime | $2.99 | one-time |


### 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 PromoKit free?

PromoKit is free to download, with in-app purchases available.

### Is Z80CPM free?

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

### Do PromoKit or Z80CPM have ads?

Neither PromoKit nor Z80CPM shows ads.

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

PromoKit ships an update daily, and Z80CPM every 10 days. Most recently, PromoKit was updated on September 16, 2026 and Z80CPM on September 18, 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.*