Compatibility: OS X 10.11 or later 64 bit

InstaCal is an affordable, yet powerful calendar app that puts all your events right at your fingertips, always available in your Mac's menu bar. InstaCal is quick and convenient, and can be opened at any time with a configurable keyboard shortcut. From there you can view your calendar events, make changes, invite friends or even add new events. You can also see your Reminders list, and add new reminders as well as view and edit existing ones.

Mac App Store: https://geo.itunes.apple.com/app/id1247292524