Axorooms
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Channel manager vs PMS vs booking engine: what's the difference?

20 October 2026 · 5 min read

Software for hosts uses three terms that overlap a lot. Here's what each one does, and which you actually need.

Channel manager

Keeps your availability the same on every booking site ("channel"): Airbnb, Booking.com, Agoda, Vrbo and so on. A night booked on one is closed on the others. Some also send prices and stay rules.

PMS (property management system)

Runs the property itself: reservations, guest details, check-in, housekeeping, invoices and payments. Most PMSs include a channel manager or connect to one.

Booking engine

The booking form on your own website, so guests can book you directly without a platform commission. It needs to share availability with your channel manager.

iCal vs API connections

Calendar link (iCal)API connection
What movesBooked and closed datesDates, prices, stay rules, guest details, often messages
SpeedHours (each site reads on its own schedule)Seconds to minutes
SetupCopy and paste linksAuthorise the software in each site
CostFree on every major site; tools are cheap or freeUsually a monthly fee per listing

Which do you need?

Axorooms is an iCal channel manager for the first group: 31 sites, one calendar, walk-in bookings, double-booking alerts, free for up to 5 listings. More in do you need a channel manager?

Stop double bookings this week

Axorooms keeps Airbnb, Booking.com, Agoda, Vrbo and 27 more in sync. Free for 5 listings, set up in five minutes, no passwords to your booking sites.

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