Let's start working on functionality and replacing the database with RealmDB in this submodule.
RealmDB is creating buzz in the modern Android programming world; it is a simple alternative to the SQLite database, which comes built into the Android SDK. Realm is not using SQLite as its core engine; it has its own C++ core, exclusively architected for mobiles. Realm saves the data in a universal, table-based format with a C++ core. Realm handles a range of sophisticated queries and can allow data accessibility from multiple languages as well as numerous ad hoc queries.