PreMinder

PreMinder is an easy to use calendar with monthly, two-monthly, week or multi-week views.

Apple Mail

There’s big news attached.

powerful calendar app for macOS

Features | 1.0.175 for Android™

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

Cozi | Must-have app for the modern family

Keep a nice, transparent calender on the desktop. Double-click on a day to enter a description.

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

Kolab Groupware is a secure, scalable, reliable, flexible, full-featured collaboration suite.

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.

Secure email with absolutely no compromises. Get your free encrypted email account today.

Rainlendar - Customizable desktop calendar

Remind, formerly Remind101, is a communication tool that helps teachers reach students and parents where they are.

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

Integrated organizer with automatic scheduling.

This program helps you organizing your dates and tasks and reminds you of upcoming events.

A fully fledged, free email server solution, an open source project (GPL v2).

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