How to Change App Name

1. Open Android Studio > app > res > values > strings.xml.

2. Enter your app name inside "app_name" string tag:

    <string name="app_name">Reward App</string>
    <string name="app_name_part_one" translatable="false">Reward</string>
    <string name="app_name_part_two" translatable="false">App</string>