What are some alternatives?
When comparing Simple Calendar and Outlook, you can also consider the following products
Google Calendar - Spend less time managing your day & more time enjoying it
Thunderbird - Thunderbird is a free email application that's easy to set up and customize - and it's loaded with great features!
Lightning Calendar - Organize your life — it’s about time!
Gmail - Gmail is available across all your devices Android, iOS, and desktop devices. Sort, collaborate or call a friend without leaving your inbox.
MineTime - MineTime is a free, modern and multi-platform calendar application.
ProtonMail - Secure email with absolutely no compromises. Get your free encrypted email account today.