A socail networking gaint.
Biggest socail networking site launched by Mark Zuckerberg .
Very easy to create your account just need email id or phone number.
Supports messaging , great search engine if you want to find someone just type its registered mobile number, email addresses or just put it’s first name.
Have a news feed and stories option for entertainment, with its messaging app messenger or messenger lite it becomes awesome because then you can voice and video call with messaging .