SecureSubmit

This plugin provides a Heartland Payment Systems Gatway addon to the Events Manager Pro plugin using our SecureSubmit card tokenization library.
Features of SecureSubmit:
<ul>
<li>Only two configuration fields: public and secret API key</li>
<li>Simple to install and configure</li>
<li>Fully maintained and supported by Heartland Payment Systems</li>
<li>Tokenized payments help reduce the merchant’s PCI exposure</li>
</ul>

Events Manager Pro SecureSubmit Gateway

SecureSubmit allows merchants to take PCI-Friendly Credit Card payments on Events Manager Pro using Heartland Payment Systems payment gateway.

Chris Reynolds

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Event Espresso

This plugin checks your server for some basic environment information to ensure compatibility with Event Espresso, the premium event management plugin for WordPress. While it’s possible to use this plugin for general environment information, it is primarily focussed on providing information that would benefit or relate to your Event Espresso installation.
It is not recommended to leave this plugin active. 
While it won’t harm your server in any way if you do, there are a number of checks and global variables that are set that don’t need to be running all the time.
If you have any feature requests or issues, please post to the plugin forums on WordPress.org.
Event Espresso is the premier event management solution for WordPress. Event Espresso provides an easy to use interface for creating and managing event registrations within the WordPress Administration Panel. Create a event in minutes!
<ul>
<li>Seamless Integration with WordPress 2.8+</li>
<li>Visually create events with our sleek editor</li>
<li>Protect your data from spam with reCAPTCHA</li>
<li>Easily embed an event into to your posts or pages</li>
<li>Export registration data to CSV</li>
<li>View registration summary from the Dashboard</li>
</ul>
See the official <a href="http://eventespresso.com/" rel="nofollow ugc">Event Espresso website</a> for more details.
<h4>Newsletter</h4>
Be the first to know when we ship new features … <a href="https://eventespresso.com/newsletter/?utm_source=wordpress_org&utm_medium=link&utm_campaign=requirements_plugin_description_tab&utm_content=newsletter+signup" rel="nofollow ugc">signup here</a>.
<h4>Community Chat</h4>
Join a real-time community chat group for professionals that are leading the way in events from event management, event technology and event marketing to work-life balance.
<a href="https://eventsmart.com/contact/community-chat/?utm_source=wordpress_org&utm_medium=link&utm_campaign=requirements_plugin_description_tab&utm_content=community+chat" rel="nofollow ugc">Join the Discussion →</a>

Event Espresso Requirements Check

This plugin checks your web hosting environment to ensure compatibility with Event Espresso, the premium event management plugin for WordPress.

Events Manager Pro SecureSubmit Gateway vs Event Espresso Requirements Check