Android App based on Dreamfactory REST API

We need an Android APP which is able to interact with a MS SQL Server. The Connection Android - MS SQL will be made through a Dreamfactory REST API which has already been set up. This App will be used as a prototype - first version will be only have between 2 - 4 activitys: - Login activity - Settings activity - Add / Edit Time recording based on MS SQL table App has to be developed in Android Studio with our existing Dreamfactory REST API (with authentification). If the work is satifsfying we're interested in further developing this prototype.