Alternatives to Google Calendar Checker for all platforms with any license

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
Built-in Calendar Box.com integration Calendar integration Dropbox integration ... Email scheduling Exchange Integration Flight Status Gmail integration ICloud Integration Integrated Search Multiple Account support Night mode/Dark Theme Office 365 integration Onedrive integration Organize mails Shared calendars Signature with image Unified inbox Yahoo Integration Add a feature

319 Like
eM Client

eM Client is a full featured e-mail client with a modern and easy to use interface. eM Client also offers calendar, tasks, contacts and chat.

Freemium Windows
Calendar integration Automatic Backup Built-in themes Built-in translation ... CalDAV CardDAV Cloud sync Combined Inbox Sync Contacts Email preview Encrypted email Apps that Sync with Google Calendar Support for IMAP Imports email from Live mail Night mode/Dark Theme POP3 Support Sync Calendars Threaded Conversations Add a feature

184 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

162 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 Apps that Sync with Google Calendar Multiple languages ... Syncs with various services Add a feature

96 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
VueMinder Calendar

Take control of your schedule and get reminded wherever and however you want. Instantly access your appointments, tasks, and notes with a simple glance at a transparent...

Freemium Windows
Apps that Sync with Google Calendar Portable Add a feature

15 Like
aCalendar

Android calendar-app showing the weeks of the year (week numbers), 21 languages, syncable with Google Calendar: FEATURES * intuitive navigation with smooth...

Freemium $ $ $ Android
Apps that Sync with Google Calendar Multiple languages Sync Calendars Add a feature

13 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
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
Cozi

Cozi is a free online calendar that helps families coordinate activities. See who needs to be where and when, be reminded of upcoming appointments, and print your...

Free Web Android iPhone Blackberry Android Tablet ... Windows Phone iPad Kindle Fire
Family calendar Add a feature

8 Like
BORG Calendar

BORG is a combination calendar and task tracking system. The calendar supports all sorts of appointments and also a simple todo list. The calendar functionality is...

Free Open Source Windows Linux
No features added Add a feature

7 Like
Desktop Calendar

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

Free Windows
No features added Add a feature

5 Like
Active Desktop Calendar

This application is a software calendar with appointments notes, tasks, alarms and contacts that provides seamless integration and interactivity with the desktop...

Commercial Windows
No features added Add a feature

8 Like
Koma-Mail

Koma-Mail is an email client which is comfortable and has very handy functions. It does not need an installation, so that you can run Koma-Mail from your flash drive...

Free Windows
Built-in RSS reader Multiple languages Multiple Account support POP3 Support ... Portable Support for Unicode Add a feature

4 Like
- Discontinued Development of KOMA Code apps stopped in January 2017. Last version of Koma-Mail, 3.83, released in March 2012, can be still downloaded from the official website.