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The easy to use free WordPress appointments plugin WP Appointments is packed with lots of innovative features that are rarest to be seen elsewhere. For example, both the front end and back end layouts are based totally on AJAX to give a seamless streamlined user experience. The ease of use goes beyond bounds. It can be used for a great variety of websites, such as doctors, spas, saloons, mechanic, personal trainers, lawyers, cleaning services, and so on. The outlook is high interactive and user friendly.
Features:
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/u_smM0ObkDU?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
<ul>
<li>Totally AJAX-based Frontend & Backend</li>
<li>Interactive design with inspiring graphics</li>
<li>Multipurpose utility </li>
<li>Easy & quick installation</li>
<li>Auto Template Generator included </li>
<li>Email Template Builder </li>
<li>Managements of multiple locations or branches </li>
<li>Management of multiple services</li>
<li>Management of multiple workers</li>
<li>Extremely flexible timetable with time slots management </li>
<li>Fully device optimize layout</li>
<li>Translation support</li>
</ul>
Pro Version:
Pro Version of Wp Appointments is up for sale on CodeCanyon with countless extra features. Pro Version is covering 8 niches and more are on their way. In the pro version you can manage appointments, bookings, locations, services, team members, timetable, payment gateways and users. 
<a href="http://codecanyon.net/item/wpappointments-paid-appointments-system-wp-plugin/14480806" rel="nofollow ugc">Upgrade to Pro Version</a>

Wp Appointments

With totally AJAX based front & back ends, WP Appointments is a fully managed and flexible tool for building powerful appointments systems.

Franky

To try it out on your free dummy site, <a href="https://tastewp.org/plugins/events-made-easy/" rel="nofollow ugc">Click here</a> (courtesy of TasteWP)
Events Made Easy is a full-featured event and membership management solution for WordPress and ClassicPress. Events Made Easy supports public, private, draft and recurring events, membership and locations management, RSVP (+ optional approval), several payment gateways (Paypal, FirstData, Mollie and others) and OpenStreetMap integration. With Events Made Easy you can plan and publish your event, let people book spaces for your weekly meetings or manage volunteers and memberships. You can add events list, calendars and description to your blog using multiple sidebar widgets or shortcodes; if you are a web designer you can simply employ the placeholders provided by Events Made Easy.
Main features: 
* Public, private, draft and recurring events with custom and dynamic fields in the RSVP form 
* Allow people to create events from the frontend using a specific shortcode 
* Membership management with custom and dynamic fields 
* Volunteer management for events (using event tasks) 
* Attendance reporting for events and memberships if the rsvp or member qrcode is scanned by someone with enough rights 
* Page and post content protection through memberships or via shortcodes 
* Drip content via memberships 
* People and groups with custom fields per person 
* PDF creation for membership, bookings and people info 
* Membership card or booking ticket can be sent as PDF via mail automatically, with optional QR code to scan for attendance/payment info 
* RSS and ICAL feeds 
* Calendar management, with holidays integration 
* Several widgets for event listings and calendar 
* Location management, with optional OpenStreetMap integration 
* RSVP bookings with custom fields and dynamic fields, payment tracking, optional approval, discounts 
* Protection of forms with internal captcha, Google reCaptcha or hCaptcha 
* Templating for emails, event lists, single events, feeds, RSVP forms, … with specific placeholders for each 
* Lots of shortcodes and options 
* Payment gateways: Paypal, FirstData, Mollie, Payconiq, Worldpay, Stripe, Braintree, Instamojo, Mercado Pago, Fondy, SumUp, Opayo 
* Send emails to registered people, automatically send reminders for payments 
* Automatically send reminders for memberships that are about to expire or have expired 
* Mail queueing and newsletter functionality 
* Mailings can be planned in the future, cancelled … and can include extra attacments 
* Multi-site compatible 
* Several GDPR assistance features (request, view and edit personal info via link; delete old records for mailings, attendances, bookings) 
* Fully localisable and already fully localised in German, Swedish, French and Dutch. Also fully compatible with polylang and <a href="https://github.com/qtranslate/qtranslate-xt/" rel="nofollow ugc">qtranslate-xt</a>: most of the settings allow for language tags so you can show your events in different languages to different people. The booking emails also take the choosen language into account. For other multi-lingual plugins, EME provides its own in-text language tags and takes the current chosen language into account.
For documentation on all shortcodes and placeholders, visit the <a href="https://www.e-dynamics.be/wordpress/eme-docs/" rel="nofollow ugc">Official site</a> .

Events Made Easy

Manage and display (recurring) events, memberships, locations and maps, volunteers, widgets, RSVP, ICAL and RSS feeds, payment gateways. SEO ready.

Wp Appointments vs Events Made Easy