Danielle Levitas, Senior Vice President of Research at App Annie, joins Hope King at the Mobile World Congress to talk about some of the top downloaded apps of the year. She says Tinder along with social media and entertainment apps are downloaded the most. Plus, just how many apps are usually downloaded in one year? Levitas says 12 billion were in 2016! In addition, what's the difference between iOS and Android users when it comes to the app store? Levitas says 45% of America has an iPhone and those iOS users tend to spend more money.