# ZX81 vs Lathe Master

The clearest difference is update cadence: ZX81 at every 10 days against Lathe Master's monthly. 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.

ZX81 ships an update every 10 days, Lathe Master monthly. The most recent releases landed on November 6, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | ZX81 | Lathe Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (92 ratings)](https://appshunter.io/ios/app/zx81/id1180117434/reviews)** | — |
| Number of ratings | **92** | — |
| Positive reviews | 98.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Monthly |
| Monetization | Free | — |
| Size | 86 MB | 47 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod, Apple Watch | iPhone, iPad, iPod, Apple Watch |
| Age rating | 9+ | 4+ |
| Developer | [Kevin Palser](https://appshunter.io/developer/1180117433) | [Olha Kadushkevych](https://appshunter.io/developer/6777969083) |

## What reviewers say

### ZX81

[App page](https://appshunter.io/ios/app/zx81/id1180117434)

Experience early 1980s home computing with this app dedicated to the Sinclair ZX80 and ZX81. It includes a wealth of example software, offering a nostalgic journey into the origins of personal computing.

**Highlights:** Sinclair ZX80/ZX81 emulation, Timex Sinclair 1000 support, Includes example software, Focuses on early 1980s computing, ROM code included with permission

**Features:** macOS Compatibility, Game Controller support, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Lathe Master

[App page](https://appshunter.io/ios/app/lathe-master-turning-workshop/id6777969081)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases:** none


## Frequently asked questions

### Is ZX81 free?

ZX81 is free to download, with no in-app purchases.

### Is Lathe Master free?

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

### Do ZX81 or Lathe Master have ads?

Neither ZX81 nor Lathe Master shows ads.

### Which is updated more often, ZX81 or Lathe Master?

ZX81 ships an update every 10 days, and Lathe Master monthly. Most recently, ZX81 was updated on November 6, 2026 and Lathe Master on November 10, 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.*