https://www.reuters.com/article/us-signal-messaging/signal-sees-meteoric-rise-in-daily-installs-as-people-look-for-whatsapp-alternatives-idUSKBN29G2HP

The number of new users installing messaging app Signal every day is on track to cross 1 million, putting it closer to levels seen by larger rival WhatsApp, following an update to the Facebook Inc-owned app's privacy policy.