Sarah Perez:

Smartphone adoption in emerging markets just delivered the highest number of app downloads Google Play has ever seen in a quarter. According to today’s report from App Annie, Google Play app downloads topped 19 billion in Q4 2017, a new record. That also makes Google Play’s download lead over iOS its largest ever, at 145 percent.
 
 Specifically, the downloads were driven by markets including India, Indonesia, and Brazil, which all contributed to Google Play’s 10 percent year-over-year growth in total download as well.
 
 India, notably, also surpassed the U.S. for combined iOS and Android downloads for the first time in Q4.