9TO5MAC - New Sensor Tower research revealed that users spent $133B on apps in 2021, up 20% YOY. Apple's App Store continues to generate more revenue than Google Play. Apple's App Store alone accounted for $85.1B of this market, with YOY growth of 17.7%. While Android dominates the market share, users spent less. During the year, Google Play registered $47.9B in revenue. TikTok is the top revenue app of the year as the video platform reached $3B in revenue in June. Other apps that drove the mobile app market in 2021 were YouTube, Tinder, and Disney+.