GPS Tracker - Mobile Tracking

Dear developer I love the idea of using mobile device to track instead of GPS tracker. However there are a lot more thing you should have to fix your app. 1. Make the imei automatically trim the space without having user to edit it. 2. Make sure the app more stable and less bugs possible for example the overlap dialog box appear over another and users can't click. 3. Make sure all server work well with your app or you can specifically mention that which port or service or firewall should opened so your app can detect the service. I'm trying to use your app with my company server but not possible as your app keep saying that the server is wrong while I could browse them smoothly via web browser.