https://techcrunch.com/2021/06/28/consumer-spending-on-apps-hit-record-64-9b-in-first-half-of-2021-but-install-growth-slowed-to-1-7/

Consumer spending in mobile apps hit a record $64.9 billion during the first half of 2021, according to preliminary data from app store intelligence firm Sensor Tower. This figure represents a 24.8% increase in spending seen across both the App Store and Google Play, compared with the year-ago period. But while industry experts believe the accelerated shift to mobile fueled by the pandemic is a trend that will continue, it’s worth noting that — despite the new record — the growth rate for consumer spending has slightly slowed, and the download growth slowed more dramatically.

From the first half of 2019 to the first half of 2020, consumer spending on mobile apps grew 28.4% from $40.5 billion to $52 billion, for comparison — slower than the 24.8% seen in the current period.