Participant support
If you are enrolled in a study and need help joining, receiving surveys, or understanding what data is being collected, contact the study coordinator or research team that invited you.
Support
Need help with StudyTrace?
Use this page for app support, participant guidance, and links to the maintainer’s public web presence. Study-specific requests should still go to the coordinator or team that invited you to the study.
Technical support
For general app information and public project context, use the maintainer links on this page. This support page is suitable as the App Store support URL.
Privacy requests
Questions about consent, withdrawal, or previously uploaded study data should be directed to the research team responsible for your study.
FAQ
Common participant questions
How do I join a study?
Open the secure study link or scan the QR code provided by your research team, then follow the consent and permission steps in the app.
Why does the app ask for location or photo permission?
StudyTrace requests permissions only for features that may be used by a study. Photo permission may be used for survey photo questions, including optional Battery usage screenshot uploads.
Does StudyTrace automatically export my Screen Time?
No. The current workflow does not export Apple's Screen Time data. If a study asks for app-usage context, you choose whether to upload a screenshot from Settings → Battery → View All Battery Usage.
How do I upload Battery usage information?
When prompted by a survey, open iPhone Settings → Battery → View All Battery Usage, take a screenshot, return to StudyTrace, and upload that screenshot as the photo answer.
Can I stop participating?
Yes. You can quit the study from the app settings. For questions about previously uploaded data or formal withdrawal under the study protocol, contact the study coordinator.
Why am I not receiving survey reminders?
Check that notifications are enabled for StudyTrace in iPhone Settings and confirm with the research team that your study has active survey schedules.
What if the app does not upload or seems inactive?
Reopen the app, verify that the study is still joined, and confirm permissions are still enabled. If the problem continues, contact your study coordinator with the approximate time of the issue.