Built for modern field research

Capture surveys, mobility, and device context in one participant app.

StudyTrace helps research teams run iPhone-based studies with secure study enrollment, background data collection, participant consent, and in-app survey workflows.

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Participant Flow

Join by QR or secure URL

Core Signals

Location, surveys, app-usage screenshots

Control

Consent-first and withdraw anytime

StudyTrace Active Study

Mobility Context

Background location collection for approved research protocols.

Survey Prompt

Schedule ESM reminders and collect responses, including optional photo answers.

Battery Usage Uploads

Ask participants to upload iOS Battery screenshots for consented app-usage context.

What it does

One app for participant enrollment and study data capture.

StudyTrace is designed for research deployments where participants need a clear consent flow, secure study configuration, and a reliable background collection experience on iPhone.

Secure study enrollment

Participants can join a study by scanning a QR code or opening a secure HTTPS study URL.

Consent-aware collection

Study data collection starts only after the participant completes consent and can be revoked later.

Background sensing

Location and other enabled streams continue collecting in the background when permissions allow it.

Survey delivery

Experience sampling notifications and in-app survey response screens help teams collect timely feedback.

Battery screenshot extraction

For supported studies, participants can upload Settings → Battery screenshots, and the server extracts app names, screen-time text, and battery percentages with OCR.

Research-team configuration

Study behavior is driven by server-side configuration so each protocol can enable the data streams it needs.

Privacy by design

Participants stay in control of what the app does.

StudyTrace includes a dedicated consent flow, study withdrawal controls, and participant-facing permission prompts. Study-specific details should still be provided by the researcher or coordinator who invited the participant.

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Consent Collection starts after the participant agrees to the study terms in the app.

Permissions iPhone permissions are requested only for the capabilities needed by the study.

Data minimization App-usage context is collected through participant-submitted Battery screenshots only when the protocol requests it.

Withdrawal Participants can quit a study later in Settings and should contact their study coordinator for protocol-specific requests.