Apps with 'address-book' feature

Cross-platform email client providing POP/IMAP support, robust filtering, multiple accounts, and chat. Extendable via add-ons with RSS/Atom, etc.

Evolution is a personal information management application that provides integrated mail, calendaring, address book and task list functionality.

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

Claws Mail is an email client (and news reader), based on GTK+, featuring

Quick response Graceful, and sophisticated interface Easy configuration, intuitive operation Abundant features Extensibility Robustness and stability.

Personal Information Manager (Mail, Contact, Calendar and more).

With Memotoo, sync all you want !

Sync and share your personal datas (bookmarks, address book, calendar, files, ...) with Memotoo.com to find them from any computer connected to Internet.

• Dont lose your data: if you lose or change your mobile phone, ...
• Access your data onl.

Nylas Mail was superseeded largely by two forks - Mailspring and Nylas Mail Lives.

The top contact management platform for professionals, teams and small businesses. Sync, deduplicate, enrich, & more. Effortlessly manage your address book contacts with Contacts+.

Contacts, called Address Book before OS X Mountain Lion, is a computerized address book included with Apple Inc.'s macOS.

The Bat! is a secure email client software, built to protect your correspondence against third-parties.

Automatically sync calendars and contacts between Thunderbird, Outlook and Android devices, without using the cloud or servers.

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.

LeaderTask Personal Organizer is a reliable assistant in managing tasks, meetings and contacts!

Less Annoying CRM is a simple customer relationship manager made just for small businesses. Manage contact info, track leads, and never miss a follow-up.

Sugar is a complete CRM solution that automates your core sales, customer service and marketing processes, with a focus on the individual.