Sensor Tower: first-time downloads of the top 20 mental wellness apps in the US hit 4M in April, up 29% from Jan.; experts say therapy apps need more oversight (Kira Herzog/CNBC)

Kira Herzog / CNBC:
Sensor Tower: first-time downloads of the top 20 mental wellness apps in the US hit 4M in April, up 29% from Jan.; experts say therapy apps need more oversight  —  - First-time downloads of the top 20 mental wellness apps in the U.S. hit 4 million in April.  That's up 29 percent from 3.1 million in January.