GreenLight is a messenger app with the features of sending text and image messages, deleting the sent messages etc. along with the functionality of showing online status of the corresponding user, video calling and search feature is also implemented so that friends can easily identify each other inside the app. For sending and receiving messages, users have to register or login first.

GreenLight is made with the help of Firebase for storing and maintaining the uploaded images by users and database on login details, chats etc..