TechCrunch reports: “Outside of in-app purchases in mobile games, subscription revenue from non-game apps helped to boost 2019’s mobile consumer spend — a figure that reached $120 billion globally last year, according to a recent report by App Annie. Now, new data from app intelligence firm Sensor Tower indicates U.S. subscription app revenue grew by 21% last year from the $3.8 billion generated by the top 100 subscription apps to reach over $4.6 billion in 2019.”