What are some alternatives?
When comparing Ops Calender and Google Calendar, you can also consider the following products
Teamup Calendar - Cloud-based calendaring using capability URL, application developed in Zurich, Switzerland.
Outlook - Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
Teamweek - A project management software to help you get the best overview. Plan fast, change plans faster!
Business Calendar - Powerful and easy to use calendar app for Android including weather, widgets and tasks.
Time.ly - Time.ly is a collaborative calendar solution for websites.
Apple Mail - There’s big news attached.