gvadev

Cal24h is an online booking platform that lets you publish event calendars, appointment forms, and catalogues. This plugin embeds any Cal24h organization or event on your WordPress site with just a shortcode or block, while offering a floating button modal for persistent calls to action.
Highlights
<ul>
<li>Gutenberg block with an inspector panel to configure organization, event, language, and appearance.</li>
<li>Shortcode <code>[cal24h]</code> supporting attributes for iframe or floating-button display modes.</li>
<li>Settings page (<code>Settings → Cal24h</code>) to define default values such as organization slug, event slug, language, and colors.</li>
<li>Responsive floating button that opens a customizable modal overlay.</li>
<li>Ready-to-ship translations and language loading for both editor and front end. Included locales: ar, bn_BD, da_DK, de_DE, el, en_US, es_ES, fa_IR, fi, fr_FR, he_IL, hi_IN, id_ID, it_IT, ja, ko_KR, nb_NO, nl_NL, pa_IN, pt_BR, pt_PT, ru_RU, sv_SE, sw, tr_TR, ur, wo, zh_CN.</li>
<li>Paste-friendly slugs: you can paste a full Cal24h URL (e.g., <code>https://cal24h.com/integration/org/event</code>) into settings or shortcode attributes — the plugin extracts the correct organization/event automatically.</li>
</ul>

Cal24h

Embed the Cal24h booking experience in WordPress with a shortcode, Gutenberg block, or floating modal.

David

Schedule appointments by allowing your customers to choose available slots based on multiple available resources along with getting appointment locations or setting an office location, or allowing the user to choose which one they prefer.
Syncs with google calendars (must use google email).
<a href="https://rezque.com" rel="nofollow ugc">Find out more at https://rezque.com</a>
<h3>Todo</h3>

Rezque Appointments

Works well!

Book appointments from one to many users with custom settings from time zones, buffers, appointment time, start times, location addresses, and more!

Cal24h vs Rezque Appointments