3 properties, 4 platforms, 12 calendar links: regaining control of a small portfolio

The answer according to the size of your portfolio

Your portfolio	Our answer	The point to watch
1 property	Free synchronisation, correctly connected, plus watching if you want to sleep soundly (€5.99 per month)	Calendar links that fail silently
2 to 5 properties	One central calendar per property, a single health screen for the whole portfolio (Pro plan, €12.99 per month)	The round of browser tabs, which replaces a real check
6 properties and more, management businesses	Channel manager or property management system, with watching alongside for whatever stays on calendar links	The cost and the migration, to be planned out of season

The logic behind this table fits in one sentence: what changes with the size of the portfolio is not the technique, it is the checking load. Connecting one property is done once; checking every property, every day, becomes a job in its own right past a certain number. The whole question is where you stand on that slope.

Where the tiredness comes from: the arithmetic of links

Let us do the sum that nobody does before starting. Each property listed on M platforms means M exported calendar links, one per platform, to be pasted in the right places. For N properties, that makes N times M links. 3 properties across 4 platforms: 12 calendar links to create, to paste, and above all to keep working over time.

And that count is still optimistic. If your platforms read each other directly, every pair needs a connection in both directions: for one property on 4 platforms, that makes 12 connections, and 36 connections for 3 properties. One link pasted against the wrong property, and two calendars each tell a false story, without a single error message ever appearing anywhere. It is simple arithmetic: as the portfolio grows, the chance that one connection is broken somewhere at any given moment stops being a textbook case and becomes the normal state of affairs.

One central calendar per property already simplifies the geometry: each platform only exchanges with the centre, and the pairs no longer all need to talk to one another. Dates are held there once per property as well, as explained in blocking dates on every platform at once. But the underlying question remains untouched: how do you know that all of this is working, this morning?

The morning ritual in 15 tabs, and what replaces it

Owners with several properties all describe the same ritual: coffee, then the round. Airbnb for property 1, Booking.com for property 1, Airbnb for property 2, and so on, some fifteen tabs to make sure nothing is wrong. That ritual has two faults. It eats genuine hours, every day, weekends included, easily an hour and a half a week. And it checks badly: the human eye spots a new booking, not a calendar link that stopped answering six days ago, because an outage is displayed nowhere. The test that really checks is described in how to check that your calendars are synchronised, and it is hard to keep up by hand across twelve links.

That is exactly what a single health screen replaces: one page for the whole portfolio, showing for each property the state of each calendar link, the time it was last read successfully, the arrivals and departures of the day, and any overlapping bookings found. The machine does the round every 30 minutes, or every 15 minutes on the Pro plan; you look at one thing only: is everything green. The morning ritual goes from twenty minutes of tabs to a single glance, and above all it no longer depends on how regular you are: if there is an outage or an overlap, the alert comes to you by email, including on the Sunday when you did not open the screen.

From 2 to 5 properties: what the Pro plan covers

Let us stay factual. The Essential plan, at €5.99 per month, watches 1 property. The Pro plan, at €12.99 per month, covers up to 5 properties, with a check every 15 minutes and the same principle: a central calendar and one output per platform for each property, a shared health screen, and alerts for outages and overlaps. The 14-day free trial, with no card needed, applies to both.

Spread across the portfolio, that comes to €2.60 per property per month for 5 properties. That is not the main argument; the main argument is what the watching replaces: the daily round, and outages discovered far too late, whose cost is measured in double bookings.

A word about your team, because at this size you are often no longer on your own: each property has its own calendar outputs, which you can share with the person who cleans, or with a relative who takes over while you are away. The method, designed for someone who wants nothing to do with computers, is described in sharing your cleaning schedule. The principle holds at the scale of a portfolio: information that travels by itself is worth more than a message you have to remember to send.

6 properties and more, management businesses: our honest answer

At this size, let us be plain, because your livelihood is at stake.

What we do not do today. We do not yet offer a read-only owner space, where each owner would consult the schedule for their property with their own login. You can share one calendar link per property, readable in any phone calendar; that is an honest stopgap, not a client portal. A Management plan is shown on our pricing page, but it is not open yet, and we do not sell what does not exist.

What you probably need. Beyond 5 properties, and as soon as your clients expect rates kept in step, messages in one place or reports, a channel manager or a property management system is the right tool, with a budget running from a few hundred euros to more than €1,000 a year depending on the tool and the size of the portfolio (ranges taken from comparison sites in August 2026, most of them charging per property per month). The full weighing-up is in channel manager or iCal. Watching then keeps a supporting role, covering everything that stays connected by calendar links: regional platforms, tourist board websites, shared calendars.

Our honest position

The threshold that matters is not a magic number, it is the moment when checking slips out of your hands. As long as you can answer the question "were all my calendars working this morning?" without spending your coffee break on it, your setup holds. For one property, that answer is free and comes from being methodical. From 2 to 5, it costs €12.99 per month, and what disappears is the round of tabs. Beyond that, it belongs to a wider management tool, and that is perfectly fine: we would rather see you choose a channel manager with your eyes open than hold on to you with a promise. The day our management plan opens, it will be judged on what it delivers, like everything else.