Contactoffice is described as 'Virtual Office, Online Office, Digital Learning Space, Online Groupware - ContactOffice, Keep a virtual office on the web. Share documents, contacts, calendar, tasks, ... with clients, students, suppliers, friends or family' and is a Cloud Storage service in the office & productivity category. There are more than 10 alternatives to Contactoffice, not only websites but also apps for a variety of platforms, including Self-Hosted, Linux, Android and iPhone apps. The best Contactoffice alternative is Google Workspace. It's not free, so if you're looking for a free alternative, you could try Icedrive or Nextcloud Hub. Other great sites and apps similar to Contactoffice are Infomaniak kSuite, Kolab, Google One and Zimbra Collaboration Suite.
Google Workspace delivers a cloud-based suite combining Gmail, Calendar, Meet & Drive to enhance collaboration through tools like Docs and Sheets. Offers secure storage options, custom domain emails, and robust management capabilities with 2FA and 24/7 support.
Icedrive is a cloud storage, backup and file sharing service with browser, desktop and mobile apps.
The Icedrive desktop application allows users to mount their cloud storage space as a real hard drive.
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.
Suite for secure email, calendaring, file sharing, chat, and online meetings, offering real-time collaboration on docs, GDPR compliance, customizable branding, renewable energy use, advanced user management, and all data hosted in Switzerland.
Kolab provides a FOSS communication & collaboration solution that can be completely self-hosted. Take back control of your data and access it via the webinterface, or existing mobile & desktop clients.
Expanded storage, access to Google experts, and more — in one shareable plan.
Zimbra Collaboration is an open, secure collaboration tool for email, calendaring, tasks and more. With the most innovative web application available today, Zimbra boosts the productivity of users on any desktop and dramatically reduces TCO compared to legacy platform vendors.
Krakenfiles is a file storage. It offers unlimited file storage and 20 MB file upload size. You will have your page when you register.
Kolab Now provides a suite of intuitive apps in a user friendly environment to make your day to day online comms easier, smarter and most importantly; secure.
WikiSuite™ is especially suited to knowledge-centric organizations and offers most (80%+) of the data and information management features all organizations need.
Real-time email, chat, audio/video calls & conferences, file-sharing, and contacts app with a modern and intuitive UI.
IBM Docs is a new office productivity suite for working on documents, spreadsheets and presentations -- together -- in the cloud. IBM Docs only a browser and an account, and you are able to easily create professional looking documents and share them with others.
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