Both iOS and Google Play saw 20% year-over-year growth in worldwide consumer spend in Q4 2017. In particular, iOS accounted for $11.5 billion of worldwide consumer spend in Q4 2017 and maintained its nearly 2x lead over Google Play.

The app stores diverged on the #2 country with Taiwan ranking for iOS and South Korea for Google Play.

Emerging markets were a large driver of Google Play’s 10% year-over-year growth in total downloads. Specifically, India, Indonesia and Brazil were the top three countries for year-over-year market share growth.