'Sharing of user data is routine, yet far from transparent' is not what you want to hear about medical apps. But 2019 is gonna 2019

Study finds Android software slinging deets all over the place

Folks using healthcare-related Android apps: after you've handed over your private details to that software, do you know where it is sending your data? If you don't, nobody should blame you. It turns out it can be a complicated and obfuscated affair."