Redmine

Open Source

Redmine is a flexible project management web application.

Apple Mail

Free

Apple Mail is an email client included with the operating systems macOS, iOS and watchOS by Apple Inc.

Trac

Open Source

Trac is an open source, Web-based project management and bug tracking system.

Airmail

Commercial

Airmail is a fast mail client for Mac and iPhone.

Phabricator

Open Source

Phabricator is a suite of web-based software development collaboration tools.

ProjectLibre

Open Source

ProjectLibre is an open source, freely available project management software system intended ultimately as a standalone replacement for Microsoft Project.

Kontact - KMail

Open Source

KMail is the email component of Kontact, the integrated personal information manager from KDE.

Spark

Free

Spark is a fast, smart mail manager app.

MailMate

Commercial

MailMate is an IMAP email client for macOS featuring extensive keyboard control, Markdown integrated email composition, advanced search conditions.

Wrike

Freemium

Wrike is an online project management software that gives you full visibility and control over tasks.

Postbox

Commercial

Postbox is powerful, intuitive, ultra-customizable, speedy task manager.

Mantis Bug Tracker

Open Source

Mantis Bug Tracker is a free and open source, web-based bug tracking system. The most common use of MantisBT is to track software defects.

Mutt

Open Source

Mutt is a text-based email client for Unix-like systems.

Bitrix24

Freemium

Bitrix24 is a free (for small businesses) social enterprise platform.

Zimbra Desktop

Free Personal

Zimbra Desktop is an offline client that lets you manage various email accounts in one desktop tool.

Open365

Open Source

Open365 is an all-in-one productivity suite, based on KDE, Seafile, LibreOffice, Docker, and Jitsi.

Polymail

Freemium

Polymail is an email application for OS X and iOS known for its clean interface and additional features atop the Gmail platform.

Goalton.com

Freemium

Goalton.com is a platform for goal and task management.

Compare OpenProject with alternatives

Redmine vs OpenProject

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Wrike vs OpenProject

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Apple Mail vs OpenProject

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Postbox vs OpenProject

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Trac vs OpenProject

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Mantis Bug Tracker vs OpenProject

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Airmail vs OpenProject

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Mutt vs OpenProject

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Phabricator vs OpenProject

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Bitrix24 vs OpenProject

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ProjectLibre vs OpenProject

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Zimbra Desktop vs OpenProject

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Kontact - KMail vs OpenProject

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Open365 vs OpenProject

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Spark vs OpenProject

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Polymail vs OpenProject

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MailMate vs OpenProject

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Goalton.com vs OpenProject

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OpenProject Mac OS X Alternatives

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