ZX81 vs Mu
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
ZX81
Experience early 1980s home computing with this app, focusing on the Sinclair ZX81. It includes example software and syncs sessions between your iPhone and Apple Watch.
- Sinclair ZX80/ZX81 emulation
- Timex Sinclair 1000/1500 emulation
- Includes example software
- watchOS app included
- Session syncing between devices
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Welcome to a taste of early 1980s home computing. This app focuses on the Sinclair ZX81 experience and is loaded with example software. A streamlined watchOS app is included, offering saved session syncing with the iOS app on the paired iPhone. Background: In 1980 the British company Science of Cambridge (later renamed Sinclair Research) released the Sinclair ZX80 home computer. The computer was developed with another technology company, Nine Tiles, and manufactured in a Timex Corporation factory in Dundee, Scotland. Followed in March 1981 by the even more popular successor, the Sinclair ZX81, both models had a profound impact on home and hobbyist computing in the UK and many other countries. Timex Corporation and Sinclair Research continued their joint venture and released the Timex Sinclair 1000 (TS1000) and 1500 (TS1500) variants of the ZX81 for the US market in July 1982 and July 1983 respectively. Meanwhile, another iconic British home computer, the Sinclair ZX Spectrum, was under development and hit the market in April 1982... but that's another story. Special thanks to Nine Tiles for granting permission to include the ROM code, to which they retain the intellectual property rights after all these years. Additionally, many thanks to all the developers of the loaded ZX81 software who have all granted permission to include their titles in the app. We hope this list of software will continue to grow in future updates.
Mu
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For iPhone only. A multi system emulator that emulates a wide range of systems - home computers and games consoles. Pair easily with bluetooth controllers. Easy to use. Simply tap select rom to select game to load game and play. Feature rich. A wide range of emulators. Change the emulator cores for high compatibility with games. Switch virtual gamepad on/off (ie show/hide on screen gamepad). Switch to left-handed gamepad etc. It has a simple user interface where the user is simply presented with required rom to be selected. See website for F.A.Qs and troubleshooting. Supported Game Systems: Atari 2600 Atari 7800 Atari Jaguar Atari Lynx Bandai WonderSwan (Color) Commodore 64 Commodore PLUS/4 NEC TurboGrafx-16/SuperGrafx/PC Engine Nintendo 64 Nintendo DS Nintendo Entertainment System Nintendo Game Boy Nintendo Game Boy Advance PlayStation SNK NeoGeo Pocket (Color) Sega Game Gear Sega Master System Sega Mega Drive Super Nintendo System For full list of supported systems see website. Controller Support 8BitDo controllers are highly recommended XBox Series X Other controllers and bluetooth keyboards should work but are at present untested Additional Features Save / Load States (Functionality dependant on emulated system) Custom configuration of controllers Multiplayer support - (Not fully tested) Fullscreen mode Virtual gamepad on/off toggle Also miscellaneous settings eg graphics settings, speed options etc **Mu Multi-System-Emulator is in no way affiliated with the respective manufacturers of the arcade machines, game consoles and computers. All associated names of arcade machines, games consoles and computers are the registered trademarks of the respective companies.** **The name "Nintendo" and all associated game console names are registered trademarks of Nintendo Co., Ltd** **Atari is the registered trademark of Atari, Inc.** **Commodore is the registered trademark of the respective owner of the trademark** **NEC TurboGrafx-16/SuperGrafx/PC Engine is the registered trademark of NEC Home Electronics** **Playstation is the registered trademark of Sony Interactive Entertainment Inc.** **SNK is the registered trademark of the respective trademark holder.** **Sega is the registered trademark of Sega Corporation.**
Screenshots
Verdict
The clearest difference is price: ZX81 at Free against Mu's $5.99. ZX81 also leads on device support (4 vs 2). Mu's advantage is iOS requirement (12.0.0 vs 15.0). On ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
ZX81 is free to download; Mu costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | ZX81 | Mu |
|---|---|---|
| Price | Free — better | $5.99 |
| Rating | 4.9 (92 ratings) — better | — |
| Positive reviews | 98.4% of reviews | — |
| Number of ratings | 92 — better | — |
| Update frequency | Every 10 days | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPod |
| Requires iOS | 15.0 | 12.0.0 — better |
| Further details — not scored | ||
| Size | 90 MB | 24 MB |
| Age rating | 9+ | 12+ |
| Developer | Kevin Palser | Thaw Soe |
In-app purchases
ZX81
No in-app purchases
Mu
No in-app purchases









