9hdigital

This plugin will allow users to chat with the website’s business in real-time by using Facebook Messenger. Users can start a conversation on the website and continue it on other devices at any time.
Please note, Facebook is still currently developing their Customer Chat and so it is still in beta.

WP Chat

Chat with business customers on your website using Facebook Messenger

cyfe

This plugin allows website owners to easily integrate their WordPress analytics into their Cyfe dashboard.
This enables you to monitor and share your WordPress blog stats (e.g. users, posts, comments) in real-time with Cyfe, the all-in-one business dashboard. To use Cyfe with your blog, simply install this plugin and sign up for a free account at https://www.cyfe.com.
You can track hundreds of additional metrics via Cyfe’s other widgets like Google Analytics, Facebook, SERPs, Webmaster Tools, MailChimp, CSV, SQL, and more!

Cyfe

This plugin lets you see your WordPress data inside your Cyfe dashboard.

WP Chat vs Cyfe