WhatsClone an application that allow to have a real-time chat with friends (Like WhatsApp). You can send and share (images or videos or audio or pdf) ...etc. there is a database local to save your messages , so when user lost the internet connection he can write a message ,the message will be saved on database local and once the other user come online the app will send your message directly .Also you can delete conversation or messages .Feel free and enjoy the new emoticons .For the Backend side you can control your app as you want even you can control and settings up the Admob from the dashboard .I build the backend using NodeJs & Mongodb .For the client side i’m using : Room as database local.