Probably because it hasn't been litigated yet. However the FTC has issued warning letters to apps which use similar technique. https://www.ftc.gov/system/file

Probably because it hasn't been litigated yet. However the FTC has issued warning letters to apps which use similar technique. https://www.ftc.gov/system/files/attachments/press-releases/ftc-issues-warning-letters-app-developers-using-silverpush-code/160317samplesilverpushltr.pdf https://www.ftc.gov/system/files/attachments/press-releases/...