Instagram stories
Twitpic launches a free iPhone app with editing features, challenging Instagram, and hints at an Android release next month.
Instagram's Android app hits 5m downloads in under a week, becoming Google Play's second top free app as it joins the Facebook family.
Facebook has acquired Instagram for USD $1 billion, with CEO Mark Zuckerberg emphasising learning from the app's success rather than fully integrating it.
Instagram launches on Android, bringing its retro photo charm to millions more, despite missing features. Over 430,000 were on the waitlist.
