According to the source: "All data is iOS + Google Play combined, except for data from China which is iOS only. If an app has a "lite" version, that data is included in
the respective app's data".
Citation formats
U.S. year-over-year downloads change in leading mobile apps 2021
In 2021, the HBO Max app saw 97 percent more downloads in the United States than in 2020. The mobile application for popular video platform YouTube reported an 18 percent year-over-year increase in downloads from users in the U.S. in the same period. TikTok, which was the most downloaded mobile app in the U.S. in 2021, saw a six percent increase in downloads from users in the country compared to the previous year. By comparison, the mobile app for video conferencing tool Zoom had around 36 percent fewer downloads compared to 2020.
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Apptopia. (December 27, 2021). Year-over-year change in downloads for leading mobile apps in the United States in 2021 [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 23, 2026, from /statistics/1286048/top-app-downloads-yoy-change-us/
Apptopia. "Year-over-year change in downloads for leading mobile apps in the United States in 2021." Chart. December 27, 2021. ÌÇÐÄÆƽâ°æ. Accessed July 23, 2026. /statistics/1286048/top-app-downloads-yoy-change-us/
Apptopia. (2021). Year-over-year change in downloads for leading mobile apps in the United States in 2021. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 23, 2026. /statistics/1286048/top-app-downloads-yoy-change-us/
Apptopia. "Year-over-year Change in Downloads for Leading Mobile Apps in The United States in 2021." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 27 Dec 2021, /statistics/1286048/top-app-downloads-yoy-change-us/
Apptopia, Year-over-year change in downloads for leading mobile apps in the United States in 2021 ÌÇÐÄÆƽâ°æ, /statistics/1286048/top-app-downloads-yoy-change-us/ (last visited July 23, 2026)
Year-over-year change in downloads for leading mobile apps in the United States in 2021 [Graph], Apptopia, December 27, 2021. [Online]. Available: /statistics/1286048/top-app-downloads-yoy-change-us/
