Skype has joined Google Play’s exclusive 1 billion download club, becoming one of only a handful of Android apps to reach the magic milestone.

It’s worth noting here that this figure doesn’t equate to 1 billion users on Android, given that people can download an app and never use it. Indeed, Microsoft CEO Satya Nadella revealed last March that Skype had around 300 million monthly active users (MAUs) across all platforms. And with rival services such as WhatsApp and Facebook Messenger growing in popularity, it’s unlikely Skype’s MAU number will have risen significantly.

VentureBeat

I have a feeling this is mostly in the over seas markets where Skype is a lot bigger then the US. I love Skype but I don’t see it that popular in the USA.