Sync with iCal from premium theme

Hi, I know with the addons of your plugin it will be possible to sync the calendar with Booking.com and Airbnb.
But what about this premium theme that includes your plugin? The addon is included or it uses the free plugin only?

https://themeforest.net/item/hotello-hotel-booking-wordpress-theme/22376061

Thank you!

Lia

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