Whisper, an anonymous app that lets users speak their mind, now has 20 million monthly users, CEO Michael Heyward announced in a Medium post Friday.
In addition, Heyward says Whisper has over a million app opens every hour, and over 10 billion monthly page views from users in 187 countries.
Whisper has raised more than $60 million since its 2012 launch.
In April, the Venice, California-based startup revealed it had more than 10 million monthly active users, and 1 million app opens per hour. That means its userbase has doubled in the past eight months.
In April, a 16-month-old Whisper competitor, Secret, went out of business. A memo written by Secret's CEO, David Byttow, stated that the app had