Today’s market for enterprise collaboration platforms resembles a playing field where two global titans pass the ball back and forth: Microsoft 365, the undisputed ruler of the corporate world, and Google Workspace, the darling of modern startups and cloud enthusiasts. For years, the Czech company IceWarp has been making a bold statement in this seemingly closed competition.
Its solutions are used not only by local companies but by tens of thousands of organizations around the world. The developers at IceWarp built their Epos ecosystem on a nice idea: while Google often forces you to juggle dozens of open tabs in your browser and Microsoft sometimes confuses you about what’s actually a web app and what’s a desktop app, IceWarp strives to keep your work life in a single window. You can seamlessly switch between emails, the calendar, shared documents, and chat. This eliminates the annoying need to switch between windows, where you’re keeping one eye on Outlook while searching with the other for where your open Word document or video call window has gone.
IceWarp’s email client forms the heart of the entire platform, and frankly, it strikes a very pleasant balance between the complexity of Outlook and the sometimes overly spartan design of web‑based Gmail. The system responds instantly.
“A key area where this challenger scores major points is handling large files. While with Google and Microsoft you usually have to manually upload large attachments to Drive or OneDrive and then generate links, IceWarp has a native SmartAttach feature. You attach a gigabyte‑sized video to an email, and the system automatically ‘chunks’ it in the background and delivers only a sleek, secure download link to the recipient. This way, your inbox won’t get clogged, and you don’t have to worry about whether the mail server on the other end will reject the message,” says Lukáš Přibyl, Head of Pre‑Sales at IceWarp.
This also applies to working with documents, where the decision is likely most critical. If you’re used to Google Docs, you know they’re unbeatable for fast online collaboration, but as soon as you upload a complex Word document, the formatting sometimes suffers. Microsoft, on the other hand, has a brilliant and robust desktop Excel, which is, however, sometimes clunky in its web version. IceWarp cleverly solves this with an integrated web editor that easily handles .docx and .xlsx formats. Even large spreadsheets and documents open correctly, with no formatting issues. However, let’s be honest: if your accounting department relies on extremely complex macros and scripts in desktop Excel and can’t function without them, neither IceWarp nor Google can fully replace Microsoft for them. For the vast majority of everyday office work, however, this tool is perfectly sufficient and convenient.
Video conferencing tests also offer an interesting comparison. We all know that feeling when Microsoft Teams launches and weaker computers struggle to keep up. In this regard, IceWarp has taken the Google route—calls run strictly and smoothly in the browser. There’s no need to install anything. Video and audio are clear and stable, and screen sharing or raising your hand works instantly. Unlike the highest‑tier Teams licenses, you won’t find massive webinar rooms with separate groups or flashy visual filters here, but for everyday company meetings and client meetings, it’s exactly the tool it should be—invisible, fast, and reliable.
If you’re wondering why a company should leave the embrace of Google or Microsoft, the answer lies in two absolutely critical metrics: price and data sovereignty. When you compare the parameters, American competitors charge license fees that, with dozens or hundreds of employees, constitute major budget items; IceWarp offers the same plus, for example, unlimited storage for roughly half the price. The second—and for many, even more important—argument is data location. With American giants, your company’s know‑how is subject to local legislation; IceWarp guarantees data centres right here in the Czech Republic—you even get to choose them yourself. And if you’re truly “paranoid” (or some regulation requires it), unlike Microsoft or Google’s cloud, you can download IceWarp and install it on your own company servers. Plus, it fully supports Linux, so you’ll save a huge amount of money on Windows Server licenses.
What are IceWarp’s limitations? The competition’s biggest weapon is their virtually endless ecosystem of third‑party apps. You can connect literally anything to Teams or Google Drive—from Trello and Salesforce to dozens of specialized add‑ons. Here, IceWarp is naturally more closed off. “I wish IceWarp would make much more progress in this regard. It’s also one of my personal goals,” adds Přibyl.
Impressive numbers abroad
When people hear “Czech alternative”, many subconsciously imagine software for a handful of local enthusiasts and startups. The reality, however, is that over 20,000 organizations—with a total of 50 million users who send and receive half a billion emails every day—now rely on IceWarp for their communication.
The Prague headquarters in Karlín now manages branches in the U.S., Germany, India, and Dubai. And the fact that this isn’t just a toy for small businesses is best evidenced by real‑world market references. For example, the Czech airline Smartwings and the dairy giant Madeta have completely migrated from the U.S. cloud to IceWarp. For Prague’s Bulovka University Hospital, the system ensures highly secure communication for 3,500 healthcare professionals. Abroad, the numbers are even more impressive. The Malaysian government previously chose the system for its public administration, specifically seeking a way to reduce its dependence on Microsoft. However, the greatest test of robustness and reliability is likely its deployment with the Chilean National Police, where 80,000 police officers and officials communicate and share documents daily via servers from Czech developers.
Ultimately, IceWarp proves that even in the shadow of American tech giants, a highly functional, elegant, and modern system can emerge. If you’re looking for a tool that will save your company money (officially starting at ten accounts), consolidate fragmented communication into a single, clear interface, and keep your data secure in the Czech Republic, you’ll be thrilled with this solution. https://www.wired.cz/clanky/czech-weapon-icewarp-takes-on-microsoft-and-google