Rainlendar
Rainlendar - Customizable desktop calendar
21 Alternatives To Rainlendar
Apple Mail
There’s big news attached.
BusyCal
powerful calendar app for macOS
CalenGoo
Features | 1.0.175 for Android™
Calendar
Calendar is a time-management web application by Microsoft.
Calendar Lock PEA
Calendar Lock PEA is an encrypted desktop calendar with a day, week and month view. The shown calendars are never stored unencrypted on your disk, but exist only in the RAM.
Calinsight Calendar and Reminder
OSX and Productivity
Cozi
Cozi | Must-have app for the modern family
DAKboard
A wifi connected wall display for your photos, calendar, news, weather and to-do.
Etar
Material design open source calendar for Android.
GMinder
GMinder is an open source Windows System Tray app that pops up to remind you about Google Calendar events.
GNOME Calendar
GNOME Calendar is a simple and beautiful calendar application designed to perfectly fit the GNOME…
Google Calendar
Spend less time managing your day & more time enjoying it
Informant
Informant for Mac is the hottest new productivity software for mac users. Organize Tasks Projects, Notes, Calendar, all in one app. Free Trial Available
Kolab Community
Kolab Groupware is a secure, scalable, reliable, flexible, full-featured collaboration suite.
Kontact
Kontact is the integrated Personal Information Manager of KDE.
Lightning Calendar
Organize your life — it’s about time!
Outlook
Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
Simple Calendar
A simple calendar with events (optional recurring and reminders), week numbers and a customizable…
SmartDay
Integrated organizer with automatic scheduling.
UKs Kalender
This program helps you organizing your dates and tasks and reminds you of upcoming events.
VueMinder Calendar
Take control of your schedule and get reminded wherever and however you want.