Room Flow is the meeting room and equipment booking software that schedules everything directly in your own Zimbra/CalDAV calendars, from your own machines. Your bookings never pass through our servers: we can't read them and we can't sell them — by design.
Bookings stored in your calendars (Zimbra/CalDAV)Works offline — license verified locallyPortal hosted in Switzerland
Your schedule
lun. · 14:08
Atelier room
4th floor · seats 8
09:00–10:00Sprint planning
10:00–11:30UX workshop
13:00–14:00Team check-in
14:00–15:00Available
15:00–16:30Weekly committee
17:00–18:00Available
Synced to your calendarZimbra/CalDAV
The problem
Booking a meeting room shouldn't mean handing your agenda to a third party.
Double bookings are expensive. Shared spreadsheets, sticky notes on doors, “is the room free?” emails: every scheduling conflict interrupts two teams at once.
Typical cloud tools centralize everything with the vendor. Who books what, with whom, how often — internal information that leaves your organization for no good reason.
Many tools stop when the network stops. An internet outage shouldn't block booking a room that's ten meters away.
The solution
A clear schedule — and data that never leaves your organization.
One schedule for rooms and equipment. Everyone sees what's free and books in a few clicks, recurring slots included.
Your bookings live in your calendars. Room Flow writes to your Zimbra/CalDAV calendars and to your machines. The vendor portal only manages the license — never your schedules.
Offline mode is built in. The application verifies your license locally using a signed certificate: no permanent connection to our servers is required to get work done.
Features
Everything you need to schedule. Nothing that spies on you.
A deliberately minimal interface: your teams see what's free, book it, and get on with their day.
Room scheduling
All your rooms, one single grid.
All your rooms at a glance: capacity, floor, availability. A free slot can be booked straight from the grid.
TYPICAL WEEK
free busy
Equipment scheduling
Gear included.
Projectors, vehicles, video-conferencing gear: equipment is booked exactly like rooms, with the same schedule and the same rules.
projector.room-2
free
Recurrence
Define it once, placed everywhere.
Weekly meeting, monthly board: define the recurrence once and Room Flow places every slot and flags conflicts.
Seats & anti-sharing
Named accounts, under your control.
Each organization manages its own admin and user seats. Each account activates a defined number of devices; the admin can see active devices and revoke any of them at any time.
Zimbra / CalDAV integration
Your calendars, no duplication.
Your bookings are written to calendars you already own. No duplication, no data silo at a third-party vendor.
Zimbracompatible
CalDAVcompatible
Offline & signed license
Network goes down? Your bookings don't.
Your license is a signed certificate stored on your machine. The application verifies it locally: it works without a permanent connection to our servers.
OfflineSigned certificateZimbra/CalDAVCH · UE
Privacy & data ownership
Our number-one argument fits in one sentence: we're not interested in your data.
Every promise in this section matches what the software actually does — not a marketing intention.
01
Data minimization, literally
The portal collects only what your account and license strictly require: your organization's name, the email address and (hashed) password of each account, and — for each device activation — the account email and a device fingerprint. The exhaustive list, item by item, is in our privacy policy. No superfluous fields, no data collected “just in case”.
02
Your bookings live in YOUR calendars
Rooms, equipment, attendees, recurrences: everything is written to your Zimbra/CalDAV calendars and your machines. None of it is centralized with us — we couldn't show you your schedules even if you asked.
03
You're the owner, not a tenant
Your data belongs to you and stays with you. From your account area, you can export the data the portal holds (JSON format) and delete your account or organization at any time, without going through support.
04
Hosted in Switzerland
The portal (site, accounts, licences) is hosted in Switzerland, under GDPR and nFADP. Your schedules, meanwhile, stay on your infrastructure.
05
No data resale, no ad profiling
We don't sell data, we don't rent it, and we build no advertising profiles. Our business model is the subscription — you pay for the software; you are not the product.
06
Privacy by design & by default
Privacy isn't a setting you switch on: it's the architecture. Minimal data by default, zero third-party resources loaded on this site, and audience measurement only after your explicit consent.
What the portal collects, and why
Data
Purpose
Organization name
Create and identify your account area
Contact email
Login, account verification, service emails
Per activation: account email + device fingerprint
License anti-sharing (active devices, revocable)
Billing data
Handled by Stripe — your card never passes through our servers
Your bookings, attendees and schedules
Never collected: they stay in your calendars and on your machines
Six screens from the application, with demonstration data. What you see here is what your teams will use.
The dashboard: the state of your rooms and equipment in real time — free, occupied, upcoming meetings.
The room schedule: every slot of the day, room by room — booked, requested or free.
The equipment schedule: the same principle as rooms, applied to your shared gear.
Requests: bookings that require approval are accepted or declined in one click, with conflicts flagged.
Rooms and their calendars: zone, capacity, equipment and status of every resource, managed in one place.
Analytics: room occupancy, meetings by type and by zone — to size your spaces based on facts.
Pricing
Pay for people. Never for your rooms.
One price per person, based on role — with unlimited rooms, equipment and resources. Free 30-day trial, no credit card — and the same privacy for everyone.
Prices excl. VAT: 5 € / 5 CHF per user per month (4 € / 4 CHF per user beyond 20), 15 € / 15 CHF per administrator seat. Annual subscription: 10 × the monthly price — i.e. 50 € / 50 CHF per user and 150 € / 150 CHF per administrator per year, about 2 months free.
Free 30-day trial for the whole organisation, no credit card. Secure payment via Stripe. Cancel any time from your customer area — cancellation takes effect at the end of the paid period, with no hidden fees.
The questions we get asked. And the ones we wish we were.
Your organization's name, each account's email and (hashed) password, licence and subscription data, and per activated device: the account email and a fingerprint used for anti-sharing. Nothing else — your bookings, attendees and schedules stay in your calendars. The exhaustive list is in our privacy policy.
In your own Zimbra/CalDAV calendars and on your workstations, inside your infrastructure. The Room Flow portal stores no bookings at all: it only manages your account, your licence and your device activations. Even if a third party asked, we would have nothing to hand over: we do not hold your schedules.
Yes — both, at any time, from your account area. The export produces a JSON file of the data the portal holds about your organization. Deleting your account or organization erases that data; your calendars stay with you and are unaffected.
Your licence is a cryptographically signed certificate file, downloadable from your customer area. The app verifies it locally, without calling our servers, and restores your session with no network: an internet outage does not block the app. Online verification simply resumes at the next connection, within your licence's grace period.
Each account can activate a number of devices defined by your licence. Upon activation, the portal records the account e-mail and a device fingerprint. Your administrator sees the list of active devices and can revoke one at any time — for example when replacing a machine.
From your customer area, in a few clicks, without contacting support and without justification. The subscription stops at the end of the period already paid, with no hidden fees. You can export your organization's data before, during and after cancellation — it remains yours, in a readable format (JSON).
Nothing happens automatically: we don't ask for a credit card at sign-up, so there is no surprise charge. After the 30 days, you subscribe to continue — or you don't, and your account simply stays inactive until deletion.
No. Room Flow works with Zimbra or any calendar server supporting the CalDAV standard: it is tested with Zimbra and SOGo (Nextcloud and Radicale are not tested yet). Your rooms and equipment are designated calendars in your existing infrastructure: no migration to run, no duplicate directory to maintain.
In Switzerland, on our own servers — no third-party cloud host. The portal only holds your account, licence and activation data — never your schedules, which stay in your calendars, on your infrastructure. The hosting stake is thus reduced to a strict minimum.
This site loads no third-party resources: no Google fonts, no CDN, no share buttons, no advertising pixels. Only technical session and security cookies are used. A self-hosted audience measurement (Matomo) may be enabled one day, but only after your explicit consent through the cookie banner.
Yes, at any time from your customer area. You pay per person and per role — user or administrator — and the adjustment is prorated via Stripe, with no penalty. The new amount applies from the current period, and the breakdown appears on your next Stripe invoice.
Payment is handled by Stripe, a PCI DSS certified provider: your card number never passes through our servers and we do not store it. We only keep the subscription data needed for billing. You manage your payment methods and invoices through Stripe's secure portal.
Cookies: the bare minimum — and nothing without your consent.
This site only uses cookies that are strictly necessary for it to work (session, security). With your consent, we also enable anonymized, self-hosted audience measurement (Matomo). No advertising cookies, no third-party trackers.
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