qOrganizer

qOrganizer is a general organizer that includes a calendar with schedule,reminders,journal/notes…

Apple Mail

There’s big news attached.

powerful calendar app for macOS

The smart menu bar calendar

Caliander is the calendar that lets you create events faster and with less effort while keeping you…

The fast calendar for iPhone. Add an event in just two quick taps.

Day-O is a simple menu bar clock replacement with a simple calendar for your Mac.

Material design open source calendar for Android.

GMinder is an open source Windows System Tray app that pops up to remind you about Google Calendar events.

Spend less time managing your day & more time enjoying it

The missing menu bar calendar for MacOS

Kontact is the integrated Personal Information Manager of KDE.

Organize your life — it’s about time!

Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.

Peek is a simple to use calendar for your iPhone.

A pocket-sized device for instant photo printing

Turn your smartphone into a Polaroid

Rainlendar - Customizable desktop calendar

A simple calendar with events (optional recurring and reminders), week numbers and a customizable…

Take control of your schedule and get reminded wherever and however you want.

An intelligent calendar