Katmai vs Flat.social in 2026: An Everyday 3D Office or a 2D Space for Meetings and Events?
Flat.social is a browser-only 2D map with video and audio, built for meetings and events, with a virtual office as one of three uses it lists alongside online schools and virtual events. It is free for up to 5 people at once, its Monthly plan is $6 per seat per month for 10 to 100 seats, and it prices by how many people can be in the space at the same time, not by named seats. Katmai is built as an everyday office: a photorealistic 3D space in the browser where your team is present on live video all day, with clients joining free by link. Katmai is $25 per user per month with every feature included, no minimum number of users and free guests. If you want a space for a workshop or a social, Flat.social is cheap and quick. If you want an office your team stays in, Katmai is the one.
This page is published by Katmai, which makes virtual office software. Flat.social prices come from Flat.social's own pricing page; check it before you buy.
Katmai vs Flat.social at a glance
|
Katmai |
Flat.social |
|
|
Built for |
An everyday office |
Meetings and events, with an office as one use |
|
What you see |
Real people on live video in a photorealistic 3D office |
Video and audio on a 2D map |
|
Price |
$25 per user per month, every feature included |
$6 per seat per month, 10 to 100 seats; Day Pass $2 per seat per day |
|
How seats count |
Per user, no minimum |
Concurrent capacity, 10-seat minimum on paid plans |
|
Free plan |
No; starts with a demo |
Up to 5 people at once |
|
Guests |
Free, joining by link |
Count toward concurrent capacity |
|
Setup |
The Katmai team sets up your spaces and adds your users |
Custom maps you build |
|
Runs in |
The browser, no download, no headset |
The browser only |
What each is built for
Flat.social's own headline is "Absurdly Delightful Online Meetings." It offers whiteboards, mini-games, custom maps and branding, and lists remote teams, online schools and virtual events as equal uses. That is a product for getting people together for an hour: a team social, a workshop, a conference lobby.
Katmai is a product for the other seven hours. It is an office your team is in all day, on live video, in a photorealistic 3D space where you can see who is around and walk over to them. Meetings happen inside it, and so does everything between meetings.
What each costs a team
Flat.social is free for five people at once. Ten concurrent seats cost $60 a month, twenty-five cost $150 a month, and a one-day event for twenty people on Day Passes costs $40. Because seats are concurrent, a team of 15 that never has more than 10 online can buy 10.
Katmai is $25 per user per month, every feature included, with no minimum number of users. Ten people are $250 a month and twenty-five are $625 a month. Guests add nothing. Katmai does not sell by concurrency because an office is somewhere your whole team is, not a room you book.
Setup and running it
Both run in the browser with nothing to install. Flat.social gives you map tools and you build the space. Katmai starts with a demo, then a configuration meeting where the Katmai team sets up your spaces and adds your users. Katmai recommends 16GB of RAM and an i7 processor or better.
Where Flat.social is the better fit
You run occasional meetups, workshops or events. You want a free space for five people. You want the cheapest concurrent-seat pricing for a 2D map, and your team does not need to be present all day.
Where Katmai is the better fit
You want a daily office your team stays in, where people see each other as themselves and clients walk in by link. You want a published per-user price with every feature included and no minimum, and the office set up for you.
How Katmai compares to other virtual offices
|
Product |
What it is |
Free plan |
Published price |
|
Katmai |
Photorealistic 3D office with live video |
No; starts with a demo |
$25 per user per month, every feature included |
|
Flat.social |
2D map for meetings and events, browser only |
Up to 5 people at once |
$6 per seat per month, 10 to 100 seats |
|
WorkAdventure |
Open-source 2D pixel-art avatar office in the browser |
Up to 10 users |
Business from €8 per user per month |
|
Kumospace |
Avatar office in the browser |
Up to 5 registered members |
Business $16 per user per month, paid annually, minimum 5 |
|
Gather |
2D pixel-art avatar office |
None; 30-day free trial |
Essential $12 per member per month billed annually ($15 billed monthly) |
FAQ
Is Flat.social free?
Yes, for up to 5 people at once, with unlimited session length.
How much does Flat.social cost?
The Monthly plan is $6 per seat per month for 10 to 100 seats, and a Day Pass is $2 per seat per day with a 10-seat minimum. Katmai is $25 per user per month with every feature included.
Is Flat.social a virtual office?
Flat.social presents itself as a space for meetings and events, with a virtual office as one use. Katmai is built as an everyday virtual office.
Does Katmai charge by concurrent seats?
No. Katmai is $25 per user per month, with no minimum number of users and free guests.
What is the difference between Katmai and Flat.social?
Flat.social puts video and audio on a 2D map for meetings and events, priced by concurrent capacity. Katmai is a photorealistic 3D office where your team works together on live video all day, at $25 per user per month with every feature included, no minimum number of users and free guests.
Related: Flat.social pricing · Katmai vs Cosmos Video · Browser-based virtual office software · Katmai pricing · Book a Katmai demo