Attendance tracking provides a record of people that actually showed up, among all registered participants for a one-time or recurring event. Trak can help with this.
For every new participant to your even, generate a new QR code (use printed QRs or digital ones via the API) and scan it with the “Registration” button, to enter participant details. Sent the code to the participant.
Each participant show up with their code at the event, and you can scan the codes to mark attendance. To only check registration, use the camera icon in the search form.