Sarahah: The top iPhone app in the world is being used to bully people, users claim

The app store's most popular free app is being used to bully people, according to its users. Sarahah might be unknown to many people. But it has quickly become popular among some iPhone users, and has become the top performing free app in the US app store, since it was released earlier this year. But the app has a dark side, according to some users and reviewers. It is being used to anonymously bully vulnerable people and has been described as a "breeding ground for hate".