scolar

As of version 3 of the reCaptcha, adding this functionality to your website makes the logo of Google appear on all pages of your website. 
The plugin loads 2.5 seconds after the page has loaded. This is because we need to give Contactform 7 time to show its form.
The plugin will work on most WordPress installations, there’s hardly any php code, so hardly any server requirements. 
At this point in time it does require jQuery, which is handled automatically.

ScolaCaptcha

This plugin hides the Google reCaptcha Version 3 logo on all pages except the pages that contain a Contactform 7 form.

Samuel Silva

<ul>
<li>This plugin provides a “Add to Calendar” button when a form (CF7) is submitted. </li>
<li>After sending a form with a date field (reservation, booking, event), you can add that date on your calendar (Google Calendar for now).</li>
<li>Basically, you allow the user to sync the form with their Google Calendar.</li>
</ul>
Contact Form 7 (CF7) plugin is required.
<h4>Features</h4>
<ul>
<li>Booking/Reservation purpose;</li>
<li>Compatible with Google Calendar;</li>
<li>Simple configuration is needed (Easy to use);</li>
<li>A simple button is added when a form is submitted. </li>
<li>You can choose the Title, Description and Location for the event</li>
<li>You can customize your button with background and text color</li>
</ul>
Google Calendar icon by Icons8.

Add to Google Calendar for Contact Form 7

Glad I found this, really useful to complement the pre-reservation form I built using Contact Form 7. 

Useful snippet

Provides a “Add to Calendar” button when a form is submitted.

ScolaCaptcha vs Add to Google Calendar for Contact Form 7