GNOME Contacts Alternatives

Kontact is the integrated Personal Information Manager of KDE.

Google Contacts is Google's contact management tool that is available in its free email service Gmail, as a standalone service, and as a part of Google's business-oriented suite of web apps Google Apps.

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KAddressBook stores all the personal details of your family, friends and other contacts.

The Nextcloud contacts app is a user interface for Nextcloud's CardDAV server.

Open Source

Organize your world. Outlook’s email and calendar tools help you communicate, stay on top of what matters, and get things done.

A platform that makes connecting third-party APIs easy

Automagically scan biz cards into LinkedIn/Gmail contacts

Organize your life — it’s about time!

Duplicate Contacts Fixer and Remover app enables users to merge all the duplicate contacts as well as they can also delete duplicate entries with a single tap.

Access and edit your contacts from personal, business, and other accounts with the Contacts app.

KOrganizer is the calendar and scheduling component of Kontact, the integrated personal information...

A simple calendar with events (optional recurring and reminders), week numbers and a customizable...

Open Source

GNOME Calendar is a simple and beautiful calendar application designed to perfectly fit the GNOME...