Here is one example of my quality work, a Chatting Application in which all feature same like "WhatsApp". I also set all security checks here to make sure privacy of customers.
This app provides you a good and secure environment to chat with your friends & family. You can share documents, images, videos, location, audios message, recording and many more!
In this app I also integrate one interesting feature of chat with "Nearby peoples". Find peoples nearby you and send them request for chatting!
In this app I implement HQ Audio/Video calling feature. I also make sure to set the good quality of calling.
Your also manage his profile and set different settings like manage chats, call logs etc. for good experience.