Fridays For U
Fridays For U is an app that lets the user report her/his participation in FFF events to the FFF servers. It's up to the user to fill in a real name or alias, email, phone number, and to enter her/his location manually or use the device GPS (500m range), or turn off location completely.
The application does not send personal data other than that shown in the app above the send-button. User contact details will not be shared with other organizations, but participation will be shown on maps in anonymous and aggregate form.