Instagram is a social media app where users can chat with friends, post photos and videos, sell things,  add captions, edit filters, tweak settings, engage with others, and do much more!

WhatsApp Messenger is a FREE messaging app available for iOS and Android smartphones.  Using the internet conection (WiFi or cellular) in your phone, you can send messages and make VoIP calls to friends and family. You can use WhatsApp to send and receive messages, calls, photos, videos, documents, and Voice Messages.