Lightning Calendar
Organize your life — it’s about time!
21 Alternatives To Lightning Calendar
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
Etar
Material design open source calendar for Android.
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
Kontact
Kontact is the integrated Personal Information Manager of KDE.
One Calendar
OneCalendar is a powerful tool that integrates all your calendars into one easy to read overview. View and manage all your appointments, events and birthdays. Easily filter the information you would like to see.
Outlook
Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.
Rainlendar
Rainlendar - Customizable desktop calendar
Remember The Milk
Remember The Milk is a task and time management application for mobile devices.
Simple Calendar
A simple calendar with events (optional recurring and reminders), week numbers and a customizable…
SmartDay
Integrated organizer with automatic scheduling.
Todoist
Todoist is a to-do list that helps you get organized, at work and in life.
VueMinder Calendar
Take control of your schedule and get reminded wherever and however you want.
aCalendar
TAPIRapps. aCalendar and aCalendar+ for Android. The fastest Android calendar.