Comparison

ZX81 vs Gravity Force Tribute

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

ZX81

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
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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.

About

Gravity Force Tribute

Features
Read full description

Remake del clásico juego de 1989 Gravity Force del Commodore Amiga 500

Screenshots

ZX814 screens
Gravity Force Tribute3 screens

Verdict

The call

The clearest difference is device support: ZX81 at 4 against Gravity Force Tribute's 2. Gravity Force Tribute's advantage is iOS requirement (12.0 vs 15.0). On price, 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

CostPrice · In-app purchases · Ads · Monetization

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

Scorecard2 real differences · 8 level
ZX81 versus Gravity Force Tribute: the parameters behind the verdict, then further details
ParameterZX81Gravity Force Tribute
PriceFreeFree
Rating4.9 (92 ratings) — better—
Positive reviews98.4% of reviews—
Number of ratings92 — better—
Update frequencyEvery 10 days—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size86 MB70 MB
Age rating9+4+
DeveloperKevin PalserJose Garcia

In-app purchases

None

ZX81

No in-app purchases

None

Gravity Force Tribute

No in-app purchases

Questions

Is ZX81 free?
ZX81 is free to download, with no in-app purchases.
Is Gravity Force Tribute free?
Gravity Force Tribute is free to download, with no in-app purchases.
Do ZX81 or Gravity Force Tribute have ads?
Neither ZX81 nor Gravity Force Tribute shows ads.

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