Comparisons
These three names do not answer the same question. Microsoft 365 is the broadest suite for Office work and enterprise integration. Google Workspace is the smoothest suite for writing together in the browser. Klytic is an à la carte suite operated by a French company, whose software components come from different software vendors. The right choice is the one that covers your actual usage and the legal framework you have decided to accept.
A feature table gives the impression that the three offers are equivalent, give or take a few boxes. That is not what decides. Two suites can both tick “email”, “storage” and “online editing” and behave very differently with a workbook containing macros, with a document written by six people, or on the question of who holds the files.
The choice is therefore made starting from the company, not from the offers: what teams do every week, what management accepts from a legal standpoint, and what you want to be able to leave one day.
Weekly usage. If people spend the day in advanced Excel, Power BI or Office add-ins, Microsoft 365 remains the tool for that job. If they write together in the browser and share simple folders, Google Workspace is often the most natural fit. If what they mainly need is email, shared files edited online, video conferencing, sales tracking and a telephone, a suite assembled à la carte is enough. This criterion comes first, because a tool that does not do the daily work will be worked around, whatever its legal framework.
The operator. Microsoft and Google are American companies. Data residency options exist. They do not change that nationality. At Microsoft, the EU Data Boundary keeps, for eligible tenants, customer data and pseudonymised personal data within the EU or EFTA, with documented exceptions. At Google, data regions cover listed content, depending on the edition, and not everything (certain logs, for example); support access from within the Union is configured with an option. Klytic is operated by Dedicace Software, a French company. The email software, Zimbra, is published by Synacor, in the United States. The document software, Nextcloud, is published in Germany. The operator and the software vendor are not the same thing. The details are in European cloud or American cloud.
The scope purchased. Microsoft 365 and Google Workspace are sold as bundles. Klytic is sold service by service: email, documents (sharing, online editing, version history), video conferencing, CRM, telephony, filtering. You can take just one. You can also keep Microsoft 365 in place and add only the filtering. A broad bundle has the advantage of consistency; an à la carte purchase has the advantage of paying for, and migrating, only what is used.
Existing integration. A company whose directory, business applications and processes are built around Entra ID, SharePoint or the Power Platform does not change suites the way it changes paper suppliers. The deeper the integration, the more justified it is to keep Microsoft 365, at least for part of the company.
Formal requirements. If a call for tenders requires an offer that is specifically SecNumCloud-qualified, the answer is found in the ANSSI catalogue, offer by offer, not in suppliers’ vocabulary. Klytic is not SecNumCloud-qualified.
Exit. Email and files can be taken out of all three. Proprietary chat histories, automations and internal applications come out poorly. The richer the suite, the more partial the exit. This criterion matters at the point of entry: what you build in a suite today determines what you will be able to take with you tomorrow.
Relevant when the standard of the sector, of customers or of the parent company is Office and Teams, when Excel is a production tool, or when many integrations are already in service. An engineering firm that exchanges complex workbooks with its clients, or a subsidiary whose group mandates Teams, has no interest in giving up the suite that does this work. Installed office software, not just a browser tab, remains a real argument.
Less relevant when the bulk of the need is email and file sharing, and management wants a European company to hold that content. In that case, you pay for a breadth of suite that goes unused, and the question of the operator remains unresolved. The GDPR check is described in GDPR and Microsoft 365, and the full trade-off in Microsoft 365 or a sovereign solution.
Relevant when collaboration in the browser comes first, when the organisation is already comfortable with Drive, and when the region controls of your edition cover the content that matters. Simultaneous editing, link sharing and search are second nature for many teams, and administering a small organisation is simple. A consulting firm that writes its deliverables collaboratively all day long has good reasons to stay.
Less relevant when content must be held by a European company, or when the data regions of your edition do not cover what your record of processing requires. The convenience of Docs then remains the sticking point: it should be tested on your own files before any decision. See GDPR and Google Workspace and Google Workspace or a sovereign solution.
Relevant when you want a French operator, a suite assembled according to your needs, and hosting in any geographical area matching the applicable jurisdiction, subject to the availability of the required services, for example in Europe or in Mauritius, or on your own servers. Klytic is relevant for business email, a dedicated document instance (sharing, online editing alone or collaboratively, version history), video conferencing, a CRM and telephony, taken together or separately. It is also relevant for a company that keeps Microsoft 365 but wants filtering placed in front of its mailboxes.
Less relevant for replacing advanced Excel, Power BI or the Teams ecosystem. Online editing, alone or collaboratively, is available in the document instance, but it is neither the Google editor nor Office. Klytic is not SecNumCloud-qualified.
Other European or Swiss operators meet the same type of need with different trade-offs: OVHcloud, Infomaniak, a Nextcloud you operate yourself, BlueMind for email. The 2026 guide describes them one by one. They are not interchangeable: the software vendor, the operator, the hosting country and the scope differ.
Fit each line of work onto a single page: ten tasks from the week, and the tool that does them today. Those that exist only in Microsoft or Google decide what stays. Those that are email, files and customer follow-up can move elsewhere. Many companies do both: they keep a Microsoft island for one line of work, and move general email out.
Example. An industrial SME with two sites does the exercise. Financial control lives in workbooks with macros and in dashboards: it stays on Microsoft 365. The workshops, sales administration and reception use email, shared folders and customer tracking: these uses can move to a European suite. The decision is not “Microsoft or not”, but “which line of work, on which tool”.
The short table already published on the site remains the Comparison page. This page explains how to use it.
Yes, and it is common. A Microsoft 365 island for one line of work, general email elsewhere, shared filtering in front of the mailboxes: each department can have its own tool. You then need to document who holds what and where the mail flows.
They answer the question “where are the disks”, not the question “which company can be compelled to produce the data”. Depending on your risk analysis, one of the two answers may be enough. The reasoning is detailed in European cloud or American cloud.
No. A French operator remains subject to French law. What changes is the applicable law and the competent court, not the existence of legal obligations.
No. Email is often easier to replace than document editing. Starting with email, testing the target editor on real files, then deciding on documents reduces the risk.
Klytic is one of the possible European solutions, not the only answer. It is operated by Dedicace Software, a French company, and is made up of services that can be purchased separately: Klytic Mail, Klytic Docs, Klytic CRM, Klytic Tel and Klytic MTA. The services are built on proven or open source solutions and on modules developed by Klytic; isolation between services is managed by Klytic servers developed for this purpose.
The data is held entirely by the customer, or by Klytic on its behalf, in an area that falls under the applicable jurisdiction. It is encrypted natively or according to the customer’s choice; the key is held by the customer or kept in the customer’s account, and Klytic has no access to it. The steps where encryption is managed by Klytic are detailed on the page protecting a company from the CLOUD Act. The contract must describe this holding and this encryption. Backups of email, documents and the CRM are made every hour, and those of telephony every day, with 30-day retention. Support is available in French by phone and in all languages by email, through a ticket tracking tool.
Existing tools are connected through a native connection, a third-party tool, or development on quotation. Subscription prices are on the Pricing page; the migration method is described in migrating from Microsoft 365 to a European solution.
This page describes selection criteria. It replaces neither a trial on your own files nor an analysis of your contracts.
Accessed in October 2026.
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