The RollCall add-on operates entirely locally on your device:

Meeting attendance data (participant names, join/leave times)
Meeting metadata (titles, dates, durations)
Extension preferences and settings

Local Storage Only
All extension data is stored locally using your browser's storage API. No data is transmitted to external servers, databases, or third parties.

Data You Control
You have complete control over your data:
Export your data anytime via CSV download
Delete specific meetings or all data through the extension interface
Uninstall the extension to remove all local data