Sort of. The free version of Bookly has the most of basic features and can be used for an unlimited period.
You can generate a personal sandbox to test out Bookly and the add-ons.
Help Center
https://support.booking-wp-plugin.com/hc/en-us/categories/200390561-FAQ
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FAQ
Questions about Bookly products and settings
custom
https://support.booking-wp-plugin.com/hc/en-us/sections/200751971-Getting-Started
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Getting started
Instructions related to plugin installation and usage
community
/hc/en-us/community/topics
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Community
Join discussions with other users
new_request
/hc/en-us/requests/new
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Submit a request
Contact us through a specially prepared form
installation, shortcodes, appearance