maxim-saplin/crossplatformdisktest ? reverse-engineered prompt

Build me a simple cross platform app for checking storage and memory speed on Windows, macOS, and Android.

I want people to be able to test SSD, HDD, USB flash, and RAM performance in a consistent way across devices. The app should run read and write benchmarks in both sequential and random modes, show the average speed in MB per second, and make it easy to compare results between machines. Please include options to control things like write buffering and file caching so the tests feel meaningful, but keep the overall experience easy to understand.

The interface should be clean and friendly, with clear buttons to start tests, simple explanations of what each test does, and a results view that shows the numbers neatly. It should feel like one app across desktop and Android, not three unrelated tools. If there is already a public results chart or similar comparison view, include a way to link to or mirror that idea.

Look up any current platform docs online if you need to.