I appreciate your point of view. If the app enables you to store and manage your medical information safely while respecting the user's privacy , it sounds like it could provide a lot of value, including having control over which parties have access to that data, as you pointed out.
Many people desire greater control over their health information because their confidentiality is crucial in maintaining various aspects of life outside major consequences such recording could bring. However regardless we should be sure -given severity for any inaccuracies or importance surrounding health news- careful there still pays dividends!