UpGrade

This application is intended for moviegoers, who want to improve the quality of cinema. For passing surveys user collects points, which can be exchanged for prizes: mobile account replenishment, movie tickets. It is possible to transfer the accumulated points to charity.
Functionality: 

• Convenient registration and authorization using a mobile phone number.
• Formation of tests on spot, depending on the responses of the user. Tests are formed on the basis of question trees. Multiple choice and exclude answers are supported.
• Ability to take tests offline.
• Local storage of the test state at the stage of passing .
• Usage of DOV-E audio tags to track user visits to partner movie theaters.

Technologies: client / server Api, SQLite, push notifications fcm.

Libraries: Google Analytics, Google Places, Retrofit, GSON, DVSDK, httpclient-android, guava.