A virtual office replaces the office your team lost, not Slack's written record and not Zoom's calls with the outside world. Those are three different jobs. Slack holds the asynchronous conversation, Zoom handles the scheduled call with someone outside the company, and a virtual office is where your team spends the working day together. Katmai does the third job: a photorealistic 3D office in the browser where your team is present as real people on live video all day, at $25 per user per month with every feature included, no minimum number of users and free guests. What a virtual office does replace is the mess in between: the internal calls, the "got a sec?" messages, the status pings and the calendar full of fifteen-minute syncs.
This guide is published by Katmai, which makes virtual office software. Slack's price comes from slack.com/pricing, read October 2026; Zoom's prices are on zoom.com/pricing. Check them before you buy.
Three jobs, three tools
|
Job |
Slack |
Zoom |
Katmai |
|
Written record, async |
Yes, this is what it is for |
No |
No |
|
Scheduled call with an outsider |
Huddles, for internal use |
Yes, this is what it is for |
Guests join by link, in your office |
|
Being in an office together all day |
No; a green dot is not presence |
No; a call ends |
Yes, on live video in a photorealistic 3D office |
|
Quick question to a colleague |
A message that waits |
A call you have to set up |
Walk over and ask |
|
Seeing who is free |
No |
No |
Yes |
|
Price |
Free plan with limits; Pro at $7.25 per user per month billed annually |
Free plan; paid plans priced per user on zoom.com/pricing |
$25 per user per month, every feature included |
What a virtual office replaces
The internal call. If two colleagues are both in the office, they talk, and the calendar invite never gets made. The status message. You can see who is at their desk, so nobody types "around?" The daily sync. A team that can see each other does not need a meeting to find out what everyone is doing. The onboarding slog. A new hire sits near the people who know how things work instead of reading channel history. Over a month these add up to the hours that back-to-back calls were eating.
What it doesn't replace
The written record. Decisions, links and documents still need a place to live, and a messaging tool is that place. Keep Slack. The outside call. A prospect who expects a Zoom link should get one, at least the first time; after that, invite them into your office, where Katmai guests join free by link. Keep Zoom for the first call and for webinars.
What a remote team should run
Most teams end up with two tools: a messaging app for the record and a virtual office for the day. The call tool survives for external meetings, and its internal use drops to nearly nothing. The cost comparison is not Katmai against Slack. It is Katmai against the office lease, the coworking memberships, the offsites booked to make up for never seeing each other, and the hours lost to meetings that exist only because nobody could see who was free.
Making the switch
Week one: everyone opens Katmai in the browser each morning and works from a desk, cameras on during core hours. Week two: internal calls move into the office's meeting rooms, and the calendar invites for them stop. Week three: the daily sync is cancelled and replaced by looking around. Week four: clients and candidates start arriving by link. The Katmai team sets up your spaces and adds your users in the configuration meeting after your demo, so none of this requires building anything yourself. Katmai recommends 16GB of RAM and an i7 processor or better.
FAQ
Can a virtual office replace Slack?
It replaces the office, not the written record. Keep a messaging tool for async communication and use the virtual office for live presence and conversation.
Can a virtual office replace Zoom?
For internal calls, yes: in Katmai colleagues are already present on live video, so there is nothing to dial into. Keep Zoom for outside calls that expect a link.
What does a virtual office cost compared to Slack and Zoom?
Katmai is $25 per user per month with every feature included, no minimum number of users and free guests. Slack Pro is $7.25 per user per month billed annually with a free plan, and Zoom's paid plans are priced per user on zoom.com/pricing.
Is Katmai a Slack or Zoom replacement?
Katmai is a virtual office: a photorealistic 3D space where your team works together on live video all day. It runs alongside a messaging tool.
What hardware does Katmai need?
A browser and a computer with 16GB of RAM and an i7 processor or better, which Katmai recommends. No download and no headset.
Related: Katmai vs Slack · Katmai vs Zoom · Always-on virtual office · Katmai pricing · Book a Katmai demo