This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

WordPress InviteBox Plugin for viral Refer-a-Friend Promotions


Reach new customers today with a social referral program powered by InviteBox. Design and launch refer a friend promotions on your WordPress website or blog in minutes – just sign up for our free 14 day trail or one of our paid accounts and then use this plugin for ease of install and modification on your WP site.

You can set up one or all of the following types of referral campaigns:

  1. Instant Reward Referral campaigns.

  2. Referral Contest campaigns.

  3. Goal-Based Referral campaigns.

  4. Sweepstakes Referral campaigns.

Reward your customers for sharing your site with their friends. Learn more about InviteBox-powered referral programs.


  • InviteBox Admin Page
  • Analytics
  • InviteBox widget


  1. Download the plugin to your computer, then log in to your WP admin area and go to Plugins > Add New. Browse to the plugin archive and select it. Then click Install Now and the plugin will be installed shortly.

  2. Activate the plugin through the ‘Plugins’ menu in WordPress.

  3. Visit InviteBox website and sign up for our 14 day free trial or the plan that suits you best.

  4. Log in to your InviteBox Dashboard at and create your referral campaign, set the rules, and setup your InviteBox widget.

  5. Copy your widget ‘Secret key’ from the ‘API settings’ section on the “Integration” page in your InviteBox Dashboard.

  6. Go to the WordPress Invitebox admin page. Click on the “Add New Campaign” button, and insert copied “Secret key” into the “Campaign Secret Key” field.

  7. You can add the InviteBox widget on one page only or certain pages by adding the widget script to the page/post content. To show the InviteBox widget on all pages select “Default Campaign for all pages”.

  8. To track conversions on WooCommerce purchase go to WooCommerce->Settings->Invitebox and select campaigns.


September 3, 2016
This is a great software. I've steadily been building my customer base and Invitebox has made it very easy for my existing customers to refer their friends and allow me to offer many kinds of incentives. It's definitely worth the price because I'm making more money and gaining more exposure to people who are more interested in my products and services. Pros: ▪ User-Friendly Software(very easy set-up and have running in a few minutes) ▪ Convenience for Current Clients (easy to share site and business with others) ▪ Referral Program (faster access to more informed and paying customers) ▪ Cost: Reasonable and Affordable Cons: ▪ Some customization to your referral program may require some manual work.
Read all 5 reviews

Contributors & Developers

“WordPress InviteBox Plugin for viral Refer-a-Friend Promotions” is open source software. The following people have contributed to this plugin.




  • First version


  • Changed the plugin behavior from inserting the button into the end of each post into inserting referral program “badge” (tab) into every page.
  • Removed debug error reporting
  • Fixed incorrect cURL option leading to error on plugin activation


  • Updated description, installation instructions and screenshots to match the current version


  • Removed the function that set page title as default post set
  • Updated description


  • There was added an ability to insert code directly through WYSIWYG editor.
  • There was added a support for the widget of type “embed” for per-page insertion.
  • In plugin settings you can chose how to insert a widget.


  • Small bug fixes


  • Added an ability to add multiple Invitebox secret keys.


  • Updated plugin description


  • Minor bug fixes
  • Replaced deprecated functions


  • WooCommerce support added


  • Gutenberg compatibility update