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OpenProject is an open-source project management software with a wide set of features and plugins.

Open Source

VoIPstudio is an award-winning VoIP system that offers businesses of all sizes a scalable communication solution. It’s inexpensive, easy-to-use, offers a full suite of PBX features, and is fully integrated for CRM.

Try for free paid Free Trial $4.99 / Monthly (User)

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Boost your productivity with reliable access anywhere with services like email, calendar, file sharing, meetings, instant messaging, and Office Online

A messaging app for teams who see through the Earth!

Apache OpenOffice is an open source, office document productivity suite.

Open Source

SoftMaker Office is one of the most powerful and reliable office suite that is fully compatible with the MS Office Suite.

Zoho Docs is an online document management software that lets you manage and store all your files on the cloud. Share, collaborate and access all your files on multiple devices.

SSuite Office is called to be one of the most accomplished software developers for both beginners and professionals alike.

free

Calligra Office that is also called as Calligra Suite is the pack of multiple applications and tools that are being offered by the MS Office Suite.

KOffice is the name of a free and open source office suite that was designed for the Windows and UNIX-based operating systems.

Ability Office is software just like MS Office Suite that features a core application in the shape of word processor, spreadsheet program, presentation maker, photo editor and database management.

Microsoft Teams provides the enterprise-level security, compliance and management features you expect from Office 365, including broad support for compliance standards, and eDiscovery and legal hold for channels, chats, and files.