Why would someone use a dApp and what are they good for?
In theory, dApps are just as good at what they do as a more traditional web, mobile, or desktop app. The difference is that if the provider of the dApp decides to stop using it, or any of the services that it builds on are blocked or shutdown, there should be less of an interruption for the dApp user. Data should be portable between services, and the functionality should be able to be utilized with a new host. Again, not all dApps are created equally decentralized, so any user should do their research before adopting one.

What the dApp? – nathan’s open ideals