About this app
HASD Study by Metricwire has been created for use in the HASD research study through Washington University in St. Louis. As part of your participation in the HASD research study, you will be asked to respond to surveys which ask questions about your thoughts, feelings, and behaviors. Additionally, the app will collect sensor data to understand your activity levels, environment and how you use your smartphone. Your app experience is unique and has been designed by the Study Team using the Metricwire Research Portal. All of the data you submit during your study experience is protected by Metricwire and controlled by your Study Team. If you have any questions please contact the HASD study team using the contact information they have provided.
Latest release
What’s New
Bug fixes
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 21, 2026 · 11:09 PM Free
Screenshots
