Run basic or limited optin campaigns (with limited signup spaces) and prompt users to share any link of your choosing after the user signs up!

Noted That:

To install correctly this viral-signup.zip.
Fisrt Download the viral-signup.zip to your computer
Extract/Open viral-signup.zip to Your Computer.
Then, Find readme.txt file inside viral-signup.zip and Open readme.txt.
Now, Read the Requirements of this plugin. Which Wordpress Version and PHP Version are required to run this Plugin in Your Wordpress Site.
Then, Follow the the Tips Below.

Start the Tips:

1. First Download "viral-signup.zip" Plugin to your Local Computer. (Click Download)

2. Then, Login to your "yourdomain.com/wp-admin" Dashboard.

3. Then, Click on "Plugins" + "Add New" from left sidemenu of Dashboard.

4. Now, Click on "Upload Plugin" button.

5. Now, Browse "viral-signup.zip" Downloaded plugin from your computer, Where you downloaded viral-signup.zip According to Step – 1 Above then, click on "Install Now"

6. Now, Click on "Active Plugin"

7. Then, See left sidemenu. "Viral Signup – limited opt-in with viral refferal sharing" folder is added on left sidemenu. Now, Click on "Viral Signup – limited opt-in with viral refferal sharing" folder.

Noted that: If you do not see "Viral Signup – limited opt-in with viral refferal sharing" folder on left sidemenu then, see at left sidemenu "Settings" or "Tools".

8. Now you configure yourself oR Watch video tutorial below about Viral Signup – limited opt-in with viral refferal sharing Configurtions and Settings or How to work "Viral Signup – limited opt-in with viral refferal sharing" in your WordPress site.

After Activated Plugin According to Step-6 then,

Go to "Plugins" + "Installed Plugin" from Wordpress Admin Panel Leftside Menu.
or Direct go to: https://yourdomain/wp-admin/plugins.php
Then, Find "Viral Signup – limited opt-in with viral refferal sharing" Activated Plugin from Plugin List.
Then, Click on "Settings" from Plugin that is Viral Signup – limited opt-in with viral refferal sharing
Now, Edit/Add/Config the setting and Click on "Save Changes" button,

Guide

Guide
Installation option 1: Find and install this plugin in the `Plugins` -> `Add new` section of your `wp-admin` Installation option 2: Download the zip file, then upload the plugin via the wp-admin in the `Plugins` -> `Add new` section. Or unzip the archive and upload the folder to the plugins directory `/wp-content/plugins/` via ftp Press `Activate` when you have installed the plugin via dashboard or press `Activate` in the in the `Plugins` list Go to `Viral Signups` section that will appear in your main menu on the left Click `Add new` to create your first form of viral signup Setup your form of viral signup Click Save Copy and paste the shortcode, such as [Wow-Viral-Signups id=1] to where you want the countdown to appear.

Installation option 1: Find and install this plugin in the Plugins -> Add new section of your wp-admin
Installation option 2: Download the zip file, then upload the plugin via the wp-admin in the Plugins -> Add new section. Or unzip the archive and upload the folder to the plugins directory /wp-content/plugins/ via ftp
Press Activate when you have installed the plugin via dashboard or press Activate in the in the Plugins list
Go to Viral Signups section that will appear in your main menu on the left
Click Add new to create your first form of viral signup
Setup your form of viral signup
Click Save
Copy and paste the shortcode, such as [Wow-Viral-Signups id=1] to where you want the countdown to appear.

limited, your, link, choosing, user, signs, share, after, users, campaigns,

Name
How to add Woo Product Reviews Shortcode in Wordpress
How to add Linekal Ebay Affiliate System in Wordpress
How to add Wptao in Wordpress
How to add Hot Accordion in Wordpress
How to add Gamipress Learndash Points Importer in Wordpress

Reffered: https://wordpress.org/