Sarahah.com is a free app that syncs up to Snapchat and other social media. It allows people to anonymously share things online they probably would never share face to face. All you need are some basic personal details and you are free to use the un-monitored platform as you wish.
Sarahah came out originally in February earlier this year in the Middle East and was incredibly popular there and Northern parts of Africa. From there it grew into a more global App, and has now even become an increasingly popular app for both Northern America and European companies.