Neeo ( Free Chat and Calling App)
Neeo is a FREE TEXTING AND CALLING APP that helps people to translate incoming text messages into more than 70 languages with many feature like group chatting, photos sharing, audio sharing and free invite friends service etc.
Url : https://play.google.com/store/apps/details?id=com.neeo.chatmessenger.ui
Key Responsibilities :
1) Handle multiple Web Services.
2) Packet Customization of XMPP for chat.
3) Handle SQLite Database for chat and contacts.
4) Handle Message sending and receiving in the form of XML Packets.
5) Handle last seen/offline/online status of user.
6) Maintain Call History for user.
7) Handle and maintain User Profile.