Kerio Connect makes email, calendars, contacts and task management easy and affordable. With Kerio Connect, you have immediate, secure access to your communications anytime, anywhere, on any device - without complexity or expensive overhead.

Nextcloud Hub is described as 'Nextcloud is the most deployed on-premises file share and collaboration platform. Access & collaborate across your devices. As fully on-premises solution, Nextcloud Hub provides the benefits of online collaboration without the compliance and security risks' and is a team collaboration tool in the office & productivity category. There are more than 50 alternatives to Nextcloud Hub for a variety of platforms, including Web-based, Windows, Linux, Android and iPhone apps. The best Nextcloud Hub alternative is CryptPad, which is both free and Open Source. Other great apps like Nextcloud Hub are Google Workspace, Infomaniak kSuite, Tracim and Nino.
Kerio Connect makes email, calendars, contacts and task management easy and affordable. With Kerio Connect, you have immediate, secure access to your communications anytime, anywhere, on any device - without complexity or expensive overhead.

Arcane Docs is a full-featured private online document editor. You can create documents or import from Google Docs and Microsoft Word. All save and secure on blockchain-based cloud storage.




IceWarp integrates all communication & collaboration features in one unified solution. Available in cloud or for on-premises deployment, IceWarp is a great tool to share and exchange all information and ideas online, offline or via mobile devices.

OBM is a free messaging and collaboration platform useful for just a couple to many thousands of users with strong support for mobile devices.



Linchpin is an efficient social intranet platform that focuses on effective collaboration and reduces complexity by means of user-specific customization.




Atmail webmail system offers a webmail client, email server platform and mailserver appliance for Linux, Unix and Windows.



ccGenie turns a mountain of emails, attachments, and links into an organized project so that you and your team can quickly find information and take action.


Turnkey Solutions for the Enterprise Cloud
Installation, Configuration, and Management tools for enterprise email, collaboration, messaging, video conferencing, file sharing, and file transfers.

A central spot for your mail, business and personal contacts, calendar, projects, documents, files, sms messages, call notes, tasks and memos.








Graphite is powered by Blockstack and is the first truly decentralized and encrypted replacement for Google G-Suite and Microsoft Office. Graphite enables convenient, secure, decentralized, and user-owned file creation, file storage, communication, and sharing.
James stands for Java Apache Mail Enterprise Server! It has a modular architecture based on a rich set of modern and efficient components which provides at the end complete, stable, secure and extendable Mail Servers running on the JVM.