Reached the figure "weeks ago", but strangely decided not announce it.
In December, Google Play reached ten billion app downloads, which means the extra five billion downloads could have arrived within Q1, depending on Google's definition of "weeks".
Apple's App Store leads the market with 600,000 apps, while Google Play has around 500,000 apps, leaving BlackBerry App World behind on 70,000 and Windows Phone Marketplace on 50,000, a lot of which are porn-based.
Additionally, the Apple App Store hit 25 billion app downloads in March and awarded a $10,000 iTunes card to the person that hit the milestone.
Like what ME does? Make sure you sign up to our daily news headline service by clicking here.