# ZX81 vs Chuckie Egg®

The clearest difference is review sentiment: ZX81 at 98% against Chuckie Egg®'s 40%. ZX81 also leads on price (Free vs $2.99) and update cadence (every 10 days vs every 3 weeks). Chuckie Egg®'s advantage is iOS requirement (13.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

ZX81 is free to download; Chuckie Egg® costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ZX81 ships an update every 10 days, Chuckie Egg® every 3 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | ZX81 | Chuckie Egg® |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[4.9 (92 ratings)](https://appshunter.io/ios/app/zx81/id1180117434/reviews)** | — |
| Number of ratings | **92** | — |
| Positive reviews | **98.4% of reviews** | 40.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 3 weeks |
| Monetization | **Free** | Paid |
| Size | 86 MB | 210 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod, Apple Watch | iPhone, iPad, iPod, Apple TV |
| Age rating | 9+ | 4+ |
| Developer | [Kevin Palser](https://appshunter.io/developer/1180117433) | [Elite Systems Ltd](https://appshunter.io/developer/339779247) |

## 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


### Chuckie Egg®

[App page](https://appshunter.io/ios/app/chuckie-egg/id1564651093)

Relive a classic platform game with modern 3D voxel graphics and leaderboards. Collect eggs, avoid hens and a duck, and aim for the highest score across challenging levels. Unlock all stages and test your skills.

**Highlights:** 3D voxel-style graphics, Leaderboards, Collect twelve eggs per level, Avoid patrolling hens and a duck, Progress through multiple difficulty passes, Unlock all levels

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

**In-app purchases:** none


## Frequently asked questions

### Is ZX81 free?

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

### Is Chuckie Egg® free?

Chuckie Egg® costs $2.99, with no in-app purchases.

### Do ZX81 or Chuckie Egg® have ads?

Neither ZX81 nor Chuckie Egg® shows ads.

### Which is updated more often, ZX81 or Chuckie Egg®?

ZX81 ships an update every 10 days, and Chuckie Egg® every 3 weeks. Most recently, ZX81 was updated on November 2, 2026 and Chuckie Egg® on November 3, 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.*