The Fine Print Files

Health and wellness apps have surged in popularity, but their privacy practices are often murky. An analysis of 10 top apps — from fitness trackers to meditation and period-tracking apps — reveals that most collect far more data than necessary and reserve the right to share it with advertisers or data brokers.

In early 2025, TikTok quietly updated its privacy policy for users in the U.S. and Europe. The changes, buried deep in the fine print, outline broader data-sharing arrangements with its parent company ByteDance, as well as unnamed “business partners.” Privacy advocates warn that these updates could expose users to greater tracking, profiling, and potential government access.