View all your Google, Outlook, iCloud, and Office365 calendars in one place. Manage events, birthdays, and appointments with seamless integration.
- Calendar App
- Freemium • Proprietary
- Mac
- Windows
- Android
- iPhone
- Android Tablet
- iPad



View all your Google, Outlook, iCloud, and Office365 calendars in one place. Manage events, birthdays, and appointments with seamless integration.



OwnDrive is a security and privacy oriented cloud storage service that gives access to people’s data anywhere, anytime and from any device. OwnDrive makes storing, syncing and sharing of data easy. Our users have the ability to store, sync and share files, contacts, calendars...

Kopano puts an email, video meetings, calendaring, and file sharing solution within one single interface.

Calcurse is a calendar and scheduling application for the command line. It helps keep track of events, appointments and everyday tasks. A configurable notification system reminds user of upcoming deadlines, the curses based interface can be customized to suit user needs and a...

A simple task manager app, allowing you to categorise your todo list by urgency, state, timeframe etc.



Axigen provides a multi-tenant, fully integrated, multi-platform, all-in-one email, calendaring and collaboration messaging solution. It grants extensive branding options and is localized in over 29 languages (including right-to-left writing mode).

ICSx5 is an Android app to subscribe to remote or local iCalendar files (like time tables of your school/university or event files of your sports team).



grommunio (formerly known as grammm) efficiently combines all requirements of modern, digital communication and collaboration.

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 similar to that of other PIMs, such as Microsoft Outlook, Mozilla Calendar, Palm Desktop, Yahoo Calendar, etc...

Kolab Now provides a suite of intuitive apps in a user friendly environment to make your day to day online comms easier, smarter and most importantly; secure.

Horde Groupware is a free, enterprise ready, browser based collaboration suite. Users can manage and share calendars, contacts, tasks and notes with the standards compliant components from the Horde Project.


eclipso Mail & Cloud is an complete and secure e-mail system from Germany with many useful and practical functions: Antispam, unlimited email folders, webmail, mobile app, Postoffice, fax and cloud storage. and many more.

Timepage is a revolutionary smart calendar that is effortless to use. It makes every day more productive by combining your events, maps, contacts and weather into one easy app.



OwnCube is an OwnCloud provider. OwnCube offers a FREE and a Premium Service, where all your photos, videos, documents, music, projects are always available and can be shared with anyone at any time. Not only are your files accessible and easy-to-handle on OwnCube, but you can...
GNOME Calendar is a simple and beautiful calendar application designed to perfectly fit the GNOME desktop. By reusing the components which the GNOME desktop is build on, Calendar nicely integrates with the GNOME ecosystem.

DavMail is a POP/IMAP/SMTP/Caldav/Carddav/LDAP exchange gateway allowing users to use any mail or calendar client with an Exchange server.

Free Outlook Plugin, which synchronizes events, tasks and contacts between Outlook and Google, SOGo, Horde or any other CalDAV or CardDAV server. Supported Outlook versions are 2016, 2013, 2010 and 2007.

Mulberry is a powerful, easy to use electronic mail (email) and calendar program that allows you to send, access, and manage email and calendars. Mulberry also helps you manage other related information, such as contact information.

The Cyrus IMAP server differs from other IMAP server implementations in that it is generally intended to be run on sealed servers, where normal users cannot log in. Users can access mail through the IMAP/IMAP-S, JMAP, POP3/POP3-S or KPOP protocols.
Be the Captain of your data. CloudFleet is a device that enables you to communicate securely via email, manages your files, calendar and contacts. Easy to use, keeps your personal data safe and secure and will grow into a smart personal assistant.

Web-based team collaboration suite with email, calendar, contact and project management, filesharing, CRM, trouble tickets, chat, and online office integration.

OBM is a free messaging and collaboration platform useful for just a couple to many thousands of users with strong support for mobile devices.

PolarisMail is a dedicated e-mail services provider based in Montreal, Quebec, Canada. It offers various paid-for email hosting packages, some of which come with basic functions and others with additional features, such as calendaring and more.

DAViCal is a server for calendar sharing. It is an implementation of the CalDAV protocol which is designed for storing calendaring resources on a remote shared server. It is a repository for calendar, todo, journal and vcard entries to be accessed via CalDAV clients such as...