Google announced at its I/O developer conference that it now boasts over 1 billion monthly-active users on its Android platform. That’s up from a 538 million figure from last year’s I/O.

1 billion #Android devices out in the world. That’s something like 93 million selfies taken every day … give or take #io14 — A Googler (@google) June 25, 2014

Previously, Google measured Android usage in terms of total device activations, but it’s now switching to a 30-day-active stat. Last September, Google announced reaching 1 billion total activations. The firm celebrated hitting the 900 million mark last May.

Android app installs have also grown significantly, up 236 percent from last year. At last year’s keynote, Google announced 48 billion total app downloads across the platform.

Android’s tablet efforts have caught up to the iPad in the past year. According to Google, the OS powers 62 percent of tablets this year, up from 46 percent last year and 39 percent two years ago.

Also revealed at I/O, mobile Chrome now hosts more than 300 million monthly active users.

For all the news coming out of Google I/O 2014, check out our keynote liveblog and our event page.

Read next: Aereo CEO: We will continue to fight for our consumers and fight to create innovative technologies