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
Compare Redmine and OpenProject and decide which is most suitable for you.
Compare Apple Mail and OpenProject and decide which is most suitable for you.
Compare Postbox and OpenProject and decide which is most suitable for you.
Compare Mantis Bug Tracker and OpenProject and decide which is most suitable for you.
Compare Airmail and OpenProject and decide which is most suitable for you.
Compare Phabricator and OpenProject and decide which is most suitable for you.
Compare Bitrix24 and OpenProject and decide which is most suitable for you.
Compare ProjectLibre and OpenProject and decide which is most suitable for you.
Compare Zimbra Desktop and OpenProject and decide which is most suitable for you.
Compare Kontact - KMail and OpenProject and decide which is most suitable for you.
Compare Open365 and OpenProject and decide which is most suitable for you.
Compare Polymail and OpenProject and decide which is most suitable for you.
Compare MailMate and OpenProject and decide which is most suitable for you.
Compare Goalton.com and OpenProject and decide which is most suitable for you.