Wakuwaku is a free tool for sign-up sheets: who brings what, who covers which shift, who helps when.
Nobody needs an account. A sheet is reachable only through its link, and search engines are asked not to index it.
We store what you type into a sheet: its title and details, and the names, notes and optional email addresses of people who sign up. Email addresses are used only for confirmations and reminders about that sheet, and are never shown to other participants.
To stop spam and to understand how the service is used, we keep a short-lived fingerprint of the network address a request came from and set one anonymous cookie in your browser. We don't use them to identify you.
Organisers can remove sign-ups or delete the whole sheet at any time. Deleting a sheet deletes everything in it.