SARAHAH, A NEW APP that lets people sign up to receive anonymized, candid messages, has been surging in popularity; somewhere north of 18 million people are estimated to have downloaded it from Apple and Google’s online stores, making it the No. 3 most downloaded free software title for iPhones and iPads.

https://theintercept.com/2017/08/27/hit-app-sarahah-quietly-uploads-your-address-book/