To fully work the application needs a lot of users. What if there is no one around the place where you are? You try it once, you try it again, and then you lose interest. You will have to make good advertising and stimulate people to use it.
Yes, but I think there will be quite a few willing! After all, the application itself is free! We all face such situations, when there is a need for help, but there is no one to turn to. This application should solve this problem!