Frank

<h4>Introduction</h4>
Chatster is a WooCommerce extension that allows real time chat with visiting users, supports your website growth with a BOT that will try to answer your customer questions and allows users to send messages and ask questions. 

The plugin is customizable, you can choose chat colors, bot image, screen position and much more.. Plenty of options are available for the front chat as well as the admin area.
The chat system will balance the load of customers across all admins that have selected to be online. 
You can select the maximum number of users you want to chat with simultaneously and Chatster will create a queue, inform the customers of their queue status and display in the admin chat the total number of user waiting. 
One of the cool features is the possibility to search product and pages without leaving conversation and attach them directly to the chat, where the customer can see and even follow the link.

The Bot helper will be your delegate when you are not around. You can program questions and answers. He will read the customer question, research the best match and pull the most appropriate answer. 
You can also adjust sensitivity and enable deep-search mode and personalize its responses.
If the customer requires a direct interaction and the chat is offline, the message me button is one click away. They can simply fill out the small form and send the question or comment through and it will be posted in the Chatster messaging section. 
Chatster can also alert you of new messages received, with an email sent to your favorite email address. You can then reply the message from Chatster and set up a reply-to email to continue the correspondence.
<h4>Notes</h4>
This plugin uses WordPress REST API and it must be enabled for this to work.
No External Service Required to run this application. This plugin runs exclusively on your machine and you won’t require any subscription.
This plugin uses Cookies. Please remember that it’s your responsibility to abide any laws and regulations within your country or jurisdiction ( e.g. EU Cookie laws ).

Chatster

Customizable real time chat with messaging system and BOT helper.

Matt Keys

Anti-Spam solutions that require your users to fill out captcha’s are frustrating for actual humans, and not that great at stopping bots.
This solution works automatically without any user configuration, and puts no additional burden on your users. After activation this plugin will go to work stopping: comment spam, spam bot registration, and bbPress spam.
Key features:
<ul>
<li>Fully compatible with wordpress caching plugins or even more advanced server level caching solutions (like WP Engine uses).</li>
<li>Utilizes randomly generated and rotating token field name and token value, which stops more clever bots that might try caching the ‘solved’ field.</li>
<li>Anti-spam field is randomly placed within the form on page load to make it difficult for spammers to target the field.</li>
<li>Developer friendly with filters and actions</li>
<li>Lightweight, clean, and efficient solution to comment, registration, and bbPress spam</li>
<li>Uses native JavaScript to avoid jQuery dependancies</li>
</ul>
Requires JavaScript be enabled in client browser (Users will see a warning if JavaScript is disabled)

Advanced Invisible Anti-Spam

Block bots without annoying captchas. Cache friendly solution with rotating keys! Blocks comment, registration, and bbpress spam. Activate and done!

Chatster vs Advanced Invisible Anti-Spam