What are some alternatives?
When comparing Simple Calendar and Time.ly, you can also consider the following products
Google Calendar - Spend less time managing your day & more time enjoying it
Teamup Calendar - Cloud-based calendaring using capability URL, application developed in Zurich, Switzerland.
Lightning Calendar - Organize your life — it’s about time!
CalReply - CalReply is a Calendaring platform that enables TV networks and businesses to enable fans and viewers to subscribe to event schedules.
MineTime - MineTime is a free, modern and multi-platform calendar application.
Tockify - Customizable web calendars that blend into your site