User accounts seem like such a core part of any application, and such a huge point of privacy concern. They can be a bit of a pain to manage, and emphasizing a

User accounts seem like such a core part of any application, and such a huge point of privacy concern. They can be a bit of a pain to manage, and emphasizing a premium level of security might gain some customers for you, but I still have to wonder how many people will be okay with this. I know I would not be okay with outsourcing the storage and management of my user data. It's such a core part of any app, and so very sensitive.