Despite the surge in Signal and Telegram downloads, WhatsApp has not seen a decline, according to Adam Blacker, vice president of insights at Apptopia. "It's too ingrained.

By comparison, Signal typically sees an average of 95,000 downloads on an average day. Image Credits:Appfigures Appfigures has been tracking the impact of the scandal on Signal’s app from day one.

In the U.S., downloads were up 45% on Monday, and in Yemen, they were up by 42%. Before the scandal, Signal was ranked No. 50 among social media apps in Yemen, but it climbed to No. 9 on Monday.