DOUNIAMAG-SAUDI-ECONOMY-TECHNOLOGY-SARAHAH

A picture taken on August 17, 2017 shows a Saudi employee checking his cell phone at his office in the capital Riyadh.Initially conceived as a tool for soliciting bluntly frank workplace feedback, the app "Sarahah" (which means "Honesty" in Arabic) has found its way into the smart phones of millennials worldwide, even as critics have raised alarm about trolling and privacy issues.The app, whose mass appeal stems from the appetite in the Arab world -- notorious for online censorship, has a frugal design and a simple prompt that encourages users to leave anonymous messages that do not allow the recipient to reply but only share on social media or block the sender. / AFP PHOTO / FAYEZ NURELDINE (Photo credit should read FAYEZ NURELDINE/AFP via Getty Images)