Wrote a fairly complete POC in 2012 with kivy, it was able to render rather detailed floor plans, which was the most important feature of the POC since the idea was that, given the complexity, it should be written once and be able to run on multiple platforms with minimal changes, keeping in mind that mobile platforms were the priority.

Most impressively, it was running very well on a first generation iPad, not to mention Android tablets, and of course, Mac, Windows, and Linux workstations.

It was ultimately dismissed by the stakeholders because there was no way to render a web page inside the App, which was something kivy couldn't do back then.

I wrote a app to communicate with a medical device in 2018. Was published on Apple AppStore and Android PlayStore

https://rvier.fr/images/chronomonitoring.png