Distributing your project to participants

Participants join your project through the free ExpiWell app (iOS and Android) — no payment and no technical setup on their side. You choose one of three distribution methods, depending on how much anonymity and control your protocol needs.

The three distribution methods

1. Access code — participants enter a unique code into the mobile app to start the project. The simplest option for most studies.
2. Invite by user account email — only participants with specific email addresses can start the project. Useful when ExpiWell runs alongside other data-collection platforms. See Invite by user account email.
3. Temporary participant accounts — project-based accounts you create, for fully anonymous data collection or for populations (e.g., elderly participants) who can't easily create their own account. See Creating temporary participant accounts.

What participants experience

• Remote onboarding: they install the app and join from anywhere
• Scheduled and randomized notifications in their own time zone — schedules adapt automatically if they travel mid-project
• Offline participation: responses upload once they reconnect
• Anonymized participation — no identifying information is shared with researchers

Troubleshooting

The participant log shows each participant's response rates in real time, including whether push notifications are reaching them — so you can spot and fix onboarding problems on day one instead of at export time. See Logs.