At Google's developer conference IO 2017, CEO Sundar Pichai said Android is now running on more than two billion active devices. The milestone, Pichai said, Google achieved this month. CNET adds: It took three years for Android to double its user base, having disclosed that it had 1 billion active devices at its developer conference in 2014. In 2015, Google said that it had 1.4 billion active users on Android. While phones make up a bulk of its devices, it's starting to see a proliferation of other gadgets running on the software.