Cathode Ray is made and published by Heiko Etzold. AppBrain is an independent app data site and isn't affiliated with Heiko Etzold. The app name, icon, screenshots and description belong to Heiko Etzold and are shown as published on the App Store.
About Cathode Ray
Cathode Ray was an education app developed by Heiko Etzold. It was removed from the App Store May 14, 2026.
User Ratings
The app had no ratings.
App Information
Cathode Ray cost $0.99. The app size was 910.00 kB. The last available version was 2.1. The last update was on February 13, 2022.
Technical Requirements
The app had a content rating of Everyone. The app had been available on the App Store since April 2014.
| Price | $0.99 |
| Rating | No ratings |
| Version | 2.1 |
| App size | 910.0 KB |
| Suitable for | Everyone |
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Changelog of Cathode Ray
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Developer information for Heiko Etzold
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Technologies used by Cathode Ray
Frequently asked questions about Cathode Ray
Is Cathode Ray free?
No. Cathode Ray costs $0.99 on the App Store.
Is Cathode Ray still available?
No. Cathode Ray was removed from the App Store. We last saw it there May 14, 2026.
How large is the Cathode Ray download?
Cathode Ray is 910.00 kB to download.
Is Cathode Ray suitable for children?
App Store rates the content of Cathode Ray as suitable for everyone.
Who made Cathode Ray?
Cathode Ray was developed by Heiko Etzold. It is listed in the education category on the App Store.
What are the best alternatives to Cathode Ray?
People looking at Cathode Ray also look at these education apps: iCircuit 3D, TunyStones Piano - read music, Kids' Kastle, Elementium, Drawing for Kids. Painting Pad.