It has been a thousand days since Korea's Kakao Talk, the mobile messenger application launched service.
And new figures show how much its popularity has grown in that time.
Kakao says its 70-million plus subscribers worldwide spend an average of 43 minutes each day on the chat application.
It's now available in 13 languages and is used in scores of countries around the globe.
And the numbers continue to grow.
In the last 100 days, 10 million new subscribers have signed on.