Most WordPress booking plugins are either generic appointment schedulers or full hotel front-desk systems. Mansio is neither — it is built for one specific use case: vacation rentals and holiday homes that already list on Airbnb and Booking.com. It is not meant for salons, clinics, restaurants, event venues, or full-service hotels with front-desk/PMS needs. For that one use case, it keeps a calendar on your own site in sync with Airbnb and Booking.com via iCal (so you never get double-booked), and lets guests reserve directly with you — no monthly SaaS fee, no per-booking commission, no migrating away from the channels you already use.

Features (Free)

Unlimited properties — add one booking calendar block per room or apartment; each has its own name, prices, bookings and iCal sync
Gutenberg block — drag and drop the booking calendar anywhere on your site
Direct reservations — guests book directly from your website
iCal sync — automatic import from Airbnb and Booking.com (every 20 minutes)
Email notifications — instant alerts for new bookings, confirmations and cancellations
Payment methods — bank transfer and cash on arrival
Booking dashboard — manage all reservations from wp-admin
Holiday calendar — automatic public holidays via the Calendarific API, with a built-in fallback list when no API key is configured
Guest area — guests sign in with the standard WordPress login (so login-limit and two-factor plugins keep working), see the bookings made with their account, download a PDF receipt, upload their ID and edit their profile. Guests who book without an account get a private, signed link to their booking and receipt, on the confirmation screen and in their email. New accounts use the standard WordPress registration, when “Anyone can register” is enabled
ID/passport upload — guests can securely upload a photo or scan of their ID for check-in, straight from their guest area (files get a random, unguessable name in a private uploads folder and are only shown to the guest and site admins)
CSV export — export your bookings and registered guests list from the dashboard
Custom icons — replace any calendar/payment/guest-area emoji with your own SVG, image or emoji from Mansio Icons
Theme-agnostic CSS — works with any WordPress theme (TT5, Neve, Astra, Kadence, GeneratePress, etc.)
Block Styles support — customize the calendar’s fonts and colors (every element) from the block’s native Styles tab
iCal export — export your calendar back to Airbnb and Booking.com

Mansio Pro

Mansio Pro is a separate plugin, available at wpmansio.com. Everything listed above is included in this free plugin with no limits; Pro adds features that are not part of this plugin’s code:

Online payments — credit card, USDT crypto (NOWPayments), ABA Scan
Coupon & discount system — percentage or fixed discounts
Multi-property search — availability search bar and results blocks
More calendar sync — Vrbo (formerly HomeAway) and any other platform that offers an iCal link
Extra blocks — FAQ, Google Maps, popup, announcement bar
Priority support

External services

Mansio connects to the following external services. Each is used only for the specific purpose below, and only when the corresponding feature is actively used.

Calendarific API (calendarific.com) — used to fetch public holiday data for the calendar you display, so you don’t have to enter national holidays by hand. Only contacted if you enter a Calendarific API key under Mansio Calendar; the request sends the selected country and year, no personal data. If no API key is configured, the plugin uses a small built-in list of common holidays instead and never contacts Calendarific. Calendarific Terms of Use · Privacy Policy.
ipapi.co, with ipwho.is as a fallback if it fails (ipapi.co, ipwho.is) — used only when a visitor clicks a “Detect my country” button, in the guest registration/profile form and in the booking calendar’s own contact form. This sends the visitor’s IP address to look up their country, so it can be pre-selected in the country field; nothing else is sent, and nothing happens unless the visitor clicks that button. ipapi.co Terms · ipapi.co Privacy Policy.
Telegram Bot API (api.telegram.org) — used to send the site owner a notification message for a new booking (direct or imported from Airbnb/Booking.com), a new guest registration, and check-in/check-out reminders, but only if the site owner has configured a Telegram bot token and chat ID. No guest data beyond what’s shown in the notification (guest name, room, dates) is sent. Telegram Terms of Service · Telegram Privacy Policy.
ipwho.is fallback — see the ipapi.co entry above; it is only used if ipapi.co fails. ipwho.is Terms and Privacy.
Airbnb / Booking.com iCal feeds — the iCal URLs you paste into the block sidebar (for example https://www.airbnb.com/calendar/ical/... or https://ical.booking.com/v1/export?t=...) are fetched periodically by the plugin (via WP-Cron) to read booking dates. Only the request itself is made — no site or guest data is sent. This is core functionality of the plugin. Airbnb Terms of Service · Airbnb Privacy Policy · Booking.com Terms · Booking.com Privacy.
flag-icons (github.com/lipis/flag-icons) — country flag images used in the guest area are bundled with the plugin (MIT license, included under assets/flags/LICENSE.txt) and served from your own site — no external request is made for flags.
Google Maps (google.com/maps) — the “Apartment page” starter pattern includes an embedded Google Maps iframe showing the property’s location, which you replace with your own address when you insert the pattern. The map is only present if you insert this pattern and loads directly from Google’s servers in the visitor’s browser (the plugin does not proxy or store this data); this is standard for any embedded map. Google Maps/Google Privacy Policy · Google Terms of Service.