App comparison

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Collaboration
Open source

Top Rated Collaboration Software with Open source - Page 35

Last updated: October 2026

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1162 software options

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ProjectManager

4.1

(339)

165

106

Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews

Award-Winning Project Management Software

ProjectManager is an award-winning project and work management software solution designed to empower teams and improve collaboration.

Zoho CRM

4.3

(7K)

3.5K

2.3K

781

172

Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews

Customer relationship management solution

Zoho CRM is a cloud-based customer relationship management (CRM) solution that helps businesses of all sizes close deals smarter, better and faster. The solution lets businesses reach customers through every channel, including telephone, email, social media, and live chat.

Microsoft Viva Engage

4.2

(819)

368

299

119

Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews

Enterprise Social Network (ESN) to connect and communicate

Microsoft Viva Engage is a private enterprise social networking solution that enables employees to collaborate securely across time and distance. Microsoft Viva Engage provides a single, secure platform on which companies can share information, resources and business applications

Bitrix24

4.2

(1K)

467

359

120

Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews

Cloud & on-premises workspace for all business sizes

Bitrix24 is a leading FREE collaboration platform used by over 12 million organizations worldwide. Available in cloud and on-premise it offers communication tools, task and project management, social collaboration tools, employee engagement, group chat, shared calendars and more.

Trilo

(0)

AI workspace combining docs tasks and calendar

Trilo is an AI workspace platform that integrates documents, tasks, calendars, and chat into one interface. It features AI assistants that transcribe meetings, create tasks, manage documents, and schedule social media posts while building a knowledge graph for team context. Trilo offers a page editor for document collaboration, a sheets editor with natural language processing, video calling, and digital whiteboards for visual collaboration.

Mirific

(0)

Cloud-based collaboration and work management solution

Mirific is a cloud-based collaborative work management solution that helps businesses create and assign actionable tasks, view project summaries, track progress via dashboard, and more.

Breezio

(0)

Community and Collaboration Platform for Associations

Breezio is a community management platform that enables users to connect with community members via a unified portal. The platform can be fully customized to fit the needs of any business or organization.

Telepresenz

(0)

SprintsQ

(0)

Uppwise CWM

(0)

Flexperto

(0)

The Communication Cloud for efficient sales

Deliver your ideal customer experience, securely.
Save time and boost customer satisfaction with our all-in-one online consultation platform for sales teams.

Mersive Essentials

(0)

Fiabee

(0)

Cloud mobile collaboration platform

Fiabee is a cloud mobile collaboration platform that provides small to large businesses with features such as controlled mobile sync-share service for corporations with a centralized admin console, remote wipe capabilities, LDAP/SSO integration among others.

Business Filemanager

(0)

Document management software

Business Filemanager is a cloud-based data and file management software for medium-sized and large companies.

Messagenius

(0)

Corporate-grade self-hosted (on-prem/cloud) messaging.

Messagenius is the enterprise messaging app that makes internal comms secure, compliant, smart and integrated.

It runs on clients’ private servers/clouds, boosts productivity with dedicated features, and integrates into any software in use.

Fiit

(0)

ColabWize

(0)

AGORA Trust Room

(0)

Swiss-made and Swiss-hosted data room software

The AGORA Trust Room is Swiss-made and Swiss-hosted data room software. Confidentiality is our top priority.

Ready Room

(0)

Threema OnPrem

(0)

Threema OnPrem is a self-hosted business messaging solution.

For businesses and organizations that place a high priority on data security and privacy, Threema OnPrem is the ideal corporate messaging solution.

KYZON Space

(0)

Team communication and collaboration solution

KYZON Space is a collaboration platform designed to replace traditional office environments. It enables uninterrupted collaboration, allowing users to share presentations directly, edit documents as a group, and stay connected through open spaces. The platform's live document collaboration feature allows remote meeting participants to collaborate on documents, integrating document sharing and editing functionality.

BrainStorm AI

(0)

AI productivity platform for managing tasks and notes

BrainStorm AI is a productivity platform combining task management, note-taking, and team collaboration powered by Google's Gemini AI. It offers in-app calling with transcription, AI-generated summaries, and action item extraction. Features include Brain Dump for voice-to-task conversion, AI Scribe for transcription, cloud storage with real-time sync, and six AI personality contexts for varied needs.

FileFlex

(0)

Zero Trust Data Access Overlay Service

FileFlex Enterprise is a zero trust overlay service that governs, restricts and manages remote access and sharing of unstructured data across your entire hybrid-IT multi-domain environment of on-premises, cloud-hosted and SharePoint storage.

Cokeep

(0)

NueViews

(0)

Less Stress. More Clarity. Better Events.

NueViews is an all-in-one CRM built for wedding planners, event planners, and vendors. Manage clients, timelines, vendors, contracts, and payments in one place and not across multiple disconnected apps.