As per our understanding, you want to make an application that should run on various platforms. Your application may includes various task such as , To Fetch data from web, To maintain a local DB, To send the notifications, To allow authentication, to manage the events, To Promote the products,etc. It may be any thing that you want from your application. We make every kind of application that suites your business requirement. Currently we are working on projects for Online shopping mall, that is intended to allow user to shop through mobile phone with the latest deals without failing.