We have 3 mobile application type.
1. Mobile client (works only online), you publish your data base as web, and connect to it. It's the same like thin client.
2. Mobile stand alone - works the same, like mobile client, but, you can cache some data, and work with it, when you lost connection.
3. Mobile app. Mobile app - offline database, which created on your mobile phone. If you wont to develop on it, you have to create configuration on your computer, publish it with Configuration - Mobile App - Publish (in Designer), and then - install on your mobile, or virtual devise - apk, which has no any postfix in name (not client, and not standalone), and after that - add new configuration in your app.
So, you do all right, just install not correct app version