2. SNAPCHAT
An app that allows users to send and receive photos and videos.
Photos and videos taken with the app are called snaps.
3. INSTAGRAM
An app that allows photo-sharing, video-sharing, and social
networking service that enables its users to take pictures and videos,
and share them either publicly or privately on the app.
4. TWITTER
An app that allows users to publish short messages that are visible to
other users. These messages are known as tweets, and can only be
140 characters or less.
