About this app
This app allows participants in the EMA study of the University of Southern California to tell us how they are feeling at random times of the day.
Latest release
What’s New
Respondents who consented to share their activity data with us can do so via the app with new health data metrics.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 17, 2026 · 4:38 PM Free
Screenshots
