# ZX81 vs ScRAEmble

The clearest difference is update cadence: ZX81 at every 10 days against ScRAEmble's every 2 months. ZX81 also leads on ratings volume (92 vs 1) and device support (4 vs 2). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.9 for ZX81 against 5.0 for ScRAEmble. That said, the two scores are not equally well evidenced: ZX81 has 92 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 98% of ZX81's written reviews are positive against 100% of ScRAEmble's.

ZX81 ships an update every 10 days, ScRAEmble every 2 months. The most recent releases landed on October 26, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | ZX81 | ScRAEmble |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (92 ratings)](https://appshunter.io/ios/app/zx81/id1180117434/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/scraemble/id6748924641/reviews)** |
| Number of ratings | **92** | 1 |
| Positive reviews | 98.4% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 2 months |
| Monetization | Free | Free |
| Size | 86 MB | 4 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [Kevin Palser](https://appshunter.io/developer/1180117433) | [Steve Rae](https://appshunter.io/developer/1587801631) |

## 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


### ScRAEmble

[App page](https://appshunter.io/ios/app/scraemble/id6748924641)

Experience a classic side-scrolling shooter with varied levels and dynamic terrain. Navigate mountains and caves, collect fuel, and dodge enemy fire. Enjoy retro gaming with full gamepad or touch controls.

**Highlights:** Side-scrolling shooter gameplay, Multiple levels, Fuel collection mechanic, Variable terrain navigation, Full MFI Gamepad support, Touch controls

**In-app purchases:** none


## Frequently asked questions

### Is ZX81 free?

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

### Is ScRAEmble free?

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

### Which has better reviews, ZX81 or ScRAEmble?

ScRAEmble is rated higher. ZX81 averages 4.9 out of 5 from 92 ratings, while ScRAEmble averages 5.0 from 1 ratings.

### Do ZX81 or ScRAEmble have ads?

Neither ZX81 nor ScRAEmble shows ads.

### Which is updated more often, ZX81 or ScRAEmble?

ZX81 ships an update every 10 days, and ScRAEmble every 2 months. Most recently, ZX81 was updated on October 26, 2026 and ScRAEmble on October 28, 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.*