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Apps with 'Contacts' feature

  1. Tutanota is a free and open source web-mail client that focuses on privacy and security. It has open source iOS and an Android apps.
  2. K-9 is an open source email client for Android with multi-folder sync, email signatures, Bcc-to-self, return-address configuration, keyboard shortcuts, Exchange Support, message flagging, IMAP deletes, saving attachments, configurable notifications and more.


  3. Microsoft Outlook, part of the Microsoft Office Suite (not to be confused with Microsoft Outlook Express), is a personal information manager that lets you manage your e-mail, calendar, contacts, and tasks.
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  4. Evolution is a personal information management application that provides integrated mail, calendaring, address book and task list functionality.
  5. Mailbird helps individuals and businesses manage emails in one place. This allows you to simplify your workflows. Therefore, spend more time on important tasks. Moreover, 9 in 10 of our customers describe our interface as “intuitive” and beautiful.
  6. 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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  7. mailbox.org offers a secure e-mail account for home and business use. The domain name, me@mailbox.org, is easy to remember and can be understood anywhere in the world. They have been operating e-mail accounts for more than 20 years and are a highly reliable service provider.
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    • FreemiumOpen Source
    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Android Tablet
    • BSD
    • iPad
    • Self-Hosted
    • F-Droid
    • Software as a Service (SaaS)
    • Etebase
    Secure, end-to-end encrypted, and privacy respecting sync for your contacts, calendars and tasks. Everything is encrypted on the client-side and all the code (client and server) is open source.
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  8. The Nextcloud contacts app is a user interface for Nextcloud's CardDAV server. Easily sync contacts from various devices with your Nextcloud and edit them online. 🚀 Integration with other Nextcloud apps! Currently Mail and Calendar – more to come.
  9. Keepmark is a desktop, privacy first documents organizer. You can organize with it your files, email, bookmarks, tasks, news, and other resources. Its available for Windows, Linux and Mac.
  10. Fastmail provides one of the most secure and reliable email environments in the industry. Rock Solid Reliability. More safety.
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  11. The top contact management platform for professionals, teams and small businesses. Sync, deduplicate, enrich, & more. Effortlessly manage your address book contacts with Contacts+.
    • FreeOpen Source
    • Android
    • Android Tablet
    • F-Droid
    A simple app for creating or managing your contacts from any source. The contacts can be stored on your device only, but also synchronized via Google, or other accounts. You can display your favorite contacts on a separate list.
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  12. 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 KPart technology, existing applications are seamlessly integrated into one.