Mobile Calendar Booking Engine is the official WordPress plugin for integrating Mobile Calendar‘s powerful booking system directly into your website.

What is Mobile Calendar?

Mobile Calendar is a comprehensive Property Management System (PMS) with integrated Channel Manager and 24/7 Booking Engine designed for hotels, vacation rentals, apartments, and accommodation providers.

Key Features

Easy Integration – Connect via one-click OAuth or manual token entry
Gutenberg Blocks – Two powerful blocks for the WordPress block editor:
- Booking Button – Customizable call-to-action button
- Search Bar – Advanced search with date picker and guest selection
Elementor Support – Full integration with Elementor page builder
Multi-language – 40+ languages supported with automatic detection
Customizable Design – Match your brand with color and style options
Responsive – Mobile-friendly design that works on all devices
Professional Date Picker – Flatpickr with dual-month calendar view
No Double Bookings – Real-time synchronization with Mobile Calendar system

Perfect For

Hotels
Vacation Rentals
Apartments
Guesthouses
Bed & Breakfasts
Any accommodation offering online bookings

How It Works

Install and activate the plugin
Connect with your Mobile Calendar account (OAuth or manual token)
Add booking blocks to your pages using Gutenberg or Elementor
Start accepting direct bookings from your website

Gutenberg Blocks

Booking Button Block
– Custom button text and colors
– Optional pre-filled parameters (room ID, dates, guests)
– Border radius, padding, and alignment controls
– Live preview in editor

Search Bar Block
– Professional date picker (Flatpickr)
– Guest selection (adults and children)
– Horizontal or vertical layout
– Customizable primary color
– Responsive design

Elementor Widgets

Both Gutenberg blocks are also available as native Elementor widgets with the same features and customization options.

Multi-language Support

The plugin automatically detects your WordPress language and displays the booking interface in one of 40+ supported languages including:

English, Polish, German, Spanish, French, Italian, Portuguese, Dutch, Czech, Danish, Finnish, Greek, Hungarian, Norwegian, Romanian, Slovak, Swedish, Turkish, Ukrainian, Russian, Chinese, Japanese, Korean, Thai, Vietnamese, and many more.

Privacy Policy

This plugin connects to Mobile Calendar’s external services to provide booking functionality:

Service: Mobile Calendar Booking Engine
Purpose: Display booking interface and process reservations
Data Transmitted: Widget token (public identifier), selected dates, guest count, room preferences
Privacy Policy: https://mobile-calendar.com/privacy
Terms of Service: https://mobile-calendar.com/terms

The plugin does not collect or store personal data on your WordPress site. All booking data is processed and stored securely by Mobile Calendar’s servers.

External Services

This plugin connects to the following external service to provide its core booking functionality:

Mobile Calendar Booking Engine

Service URL: https://booking.mobile-calendar.com
Service Provider: Mobile Calendar (https://mobile-calendar.com)
Purpose: This plugin displays the Mobile Calendar booking interface within an iframe when users click on booking buttons or submit the search form. This is the core functionality of the plugin – enabling direct hotel/accommodation reservations.
Data Transmitted: Widget token (public identifier for your property), selected check-in/check-out dates, number of guests (adults/children), room preferences, and language preference.
When Called: The external service is called only when a user interacts with a booking widget (clicks a booking button or submits the search bar form). No data is transmitted during normal page loads.
Account Required: Yes, you need a Mobile Calendar account to use this plugin. Create one at https://mobile-calendar.com
Privacy Policy: https://mobile-calendar.com/privacy
Terms of Service: https://mobile-calendar.com/terms

This is a legitimate service integration, similar to how WooCommerce connects to payment gateways or Disqus handles comments. The booking system cannot function without this external connection as all reservation data is managed by Mobile Calendar’s servers.

Third-Party Libraries

Flatpickr Date Picker

Library: Flatpickr v4.6.13
License: MIT License
Source: https://github.com/flatpickr/flatpickr
Included Locally: Yes, all Flatpickr files are bundled with this plugin in the assets/vendor/flatpickr/ directory
Purpose: Provides the professional date picker interface for selecting check-in and check-out dates
Localizations: 18 language files included locally (cs, da, de, es, fi, fr, hu, it, nl, no, pl, pt, ro, ru, sk, sv, tr, uk)

No CDN or remote loading is used for Flatpickr – all files are included within the plugin.

Source Code

All JavaScript and CSS files in this plugin are human-readable and not minified. No build tools (npm, webpack, gulp, etc.) are required.

JavaScript files: Located in assets/js/, blocks/, and static/js/ directories – all uncompressed and commented
CSS files: Located in assets/css/ and static/css/ directories – all uncompressed and formatted
Gutenberg blocks: Source files in blocks/ directory – plain JavaScript, no JSX compilation
Vendor libraries: Flatpickr files in assets/vendor/flatpickr/ – original distribution files

The complete source code is available at: https://github.com/mobile-calendar/wp-plugin-mobile-calendar-booking-engine

Support

Need help? We’re here for you:

Website: https://mobile-calendar.com
Email: [email protected]
Phone: +48 502-300-023
Documentation: Available in plugin settings page

Credits

Developed by the Mobile Calendar Team

License

This plugin is licensed under GPLv2 or later.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.