Is this a good option to host sensitive data? I'll have to opt on a backend to store medical data in my app. I had discarded Firebase due to some opinions I found on the web stating it would not be the best option.
It's not a good option for medical data. Also, we are far too early and need to go through a security audit.
At some stage we will make it easy to self-host, and at that point it might be worth checking out again. If you need any recommended alternatives, feel free to message me (email in my profile)