Show HN: Free activity calendar for schools, sports clubs, and organizations

FreeCal is a free calendar platform designed for schools, sports clubs, and organizations to manage and share activities without relying on email communications. The service offers unlimited calendars with features like recurring events, rich descriptions, and public/private visibility controls, with an optional Pro plan (€29/year per calendar) that removes advertisements. Users can set up their first calendar within minutes and share it via a fixed link with members or keep it internal-only.