We also develop Java apps. For both mobiles (Android and iOS) and for personal/buisniss use on computers. 3 people are doing it, all of them are experienced Java developers. We normally work for local companies, but as of ths year we decided to expand on freelancing too. We need full deteails of your app, what do you want it to be, look like, and its functions. Without them, we will not agree to work on it.