Alternatives to Cozi for all platforms with any license

Google Calendar

With Google Calendar, its easy to keep track of all your lifes important events in one place. You can add events and send invitations effortlessly, share your schedule...

Free Web Android iPhone Chrome OS Android Tablet ... iPad Sunbird Chrome
Material design Data export/import IFTTT integration Shared calendars ... Sync across Devices Add a feature

845 Like
Microsoft Office Outlook

Part of the Microsoft Office Suite, Outlook is a personal information manager that lets you manage your e-mail, calendar, contacts, and tasks.

Freemium $ $ $ Mac Windows Web Android iPhone ... Android Tablet Windows Phone iPad Apple Watch Android Wear
Box.com integration Built-in Calendar Calendar integration Dark theme ... Dropbox integration Email scheduling Exchange Integration Flight Status Gmail integration ICloud Integration Integrated Search Multiple Account support Office 365 integration Onedrive integration Organize mails Shared calendars Signature with image Unified inbox Yahoo Integration Add a feature

313 Like
Lightning Calendar

Organize your schedule and events in a calendar fully integrated with Thunderbird or Seamonkey email. .

Free Open Source Mac Windows Linux Thunderbird SeaMonkey
CalDAV CardDAV Add a feature

159 Like
- As much as I love using Lightning, it does not sync calendar data across other devices or to other people. **This syncing is the primary core #1 feature of Cozi** (which, sadly, Lightening just does not do). Guest • Jan 2017
Remember The Milk

Take your tasks anywhere with this feature-packed application. See tasks located nearby, add and complete tasks on the go, organize upcoming tasks, and sync it all...

Freemium Web Android iPhone Android Tablet iPad ... Blackberry 10
Support for Keyboard Shortcuts Add a feature

334 Like
Apple Calendar

Keep track of your busy schedule and share it with others using Calendar. Create separate calendars — one for home, another for school, a third for work, and so on. See...

Free Mac iPhone iPad iCloud
Sync with iCloud Week Planner Add a feature

127 Like
Rainlendar

Rainlendar is a feature rich calendar application that is easy to use and doesn't take much space on your desktop. The application is platform independent so you can...

Freemium Mac Windows Linux
Customizable Sync with Fantastical Sync with Google Calendar Multiple languages ... Syncs with various services Add a feature

96 Like
Simple Calendar

A simple calendar with events (optional recurring and reminders), week numbers and a customizable widget. It provides a yearly, monthly, daily view. It's fully...

Free Open Source Android Android Tablet
Built-in Calendar Add a feature

20 Like
Kontact

Kontact is the integrated Personal Information Manager of KDE. Kontact suite unites mature and proven KDE PIM applications under one roof. Thanks to the powerful...

Free Open Source Windows Linux
Convert Email to Task Add a feature

25 Like
iRedMail

A fully fledged, free email server solution, an open source project (GPL v2). Use official binary packages from Linux/BSD distributions, with both i386 and x86_64...

Free Open Source Linux BSD Self-Hosted
No features added Add a feature

16 Like
DAKboard

A wifi connected wall display for your photos, calendar, news, weather and to-do.

Freemium Mac Windows Linux Web Windows Mobile ... Android iPhone Chrome OS Android Tablet Windows Phone iPad Apple TV Kindle Fire Fire TV Chromecast
Calendar integration Google Calendar integration Sync with Google Calendar Todoist integration ... Weather alerts Add a feature

5 Like
BusyCal

BusyCal is the most powerful, flexible, reliable calendar app for macOS. It's packed with time-saving features and compatible with all leading cloud services...

Commercial $ $ $ Mac
Group calendar filters Add a feature

15 Like
CalenGoo

CalenGoo gives you a fast and easy way to access and change your Google Calendar (or Google Apps Calendar) with your Android device.

Commercial Android iPhone Android Tablet iPad Android Wear
Sync with Google Calendar Add a feature

7 Like
UKs Kalender

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

Free Windows
No features added Add a feature

10 Like
MineTime

MineTime is a free, modern and multi-platform calendar application. It connects to several calendar providers (including Google Calendar, Microsoft Exchange and...

Free Mac Windows Linux
Calendar integration Google Calendar integration Sync with Google Calendar Sync Calendars Add a feature

5 Like
Hiri

Fast, good looking email client. Lighter than MS Outlook with some unique and clever features. Works ONLY with Outlook / Exchange.

Commercial $ $ $ Mac Windows Linux
Calendar integration Convert Email to Task Office 365 integration Add a feature

22 Like