They say that necessity is the mother of invention, and this rings particularly true for mobile apps. Need to check your flight status? Have some food delivered? Deposit a check? There are apps for all of these things, and they were all created by someone who saw a need. Dropbox Pro user Daniel Levine is no different - he saw a need, so he created an app to fill it. The big difference between Daniel and most people who create apps is that he's not a developer; he works in law.