Have you already looked at this page?
https://www.ssothealth.org/solutionsHere's a little demonstration of how the app should work.
It is good to see how different people can be granted access to the data and also withdrawn. Everything looks very good already
Thanks for sharing the link, I just checked and app looks fantastic. Easy to use and understand. couple of clicks are needed to grant and remove access

The app looks really intuitive and easy to use. But I'd like to test it by myself. Is there a MVP or a demo version or something like that planned?