Rahul Aryan

Zen Projects and Rahul have agreed to team up to bring substantial resources into the development of AnsPress and its related themes and extensions, read the full announcement here: https://anspress.net/blog/anspress-update-annoucement/
AnsPress is an open source, developer friendly, question and answer plugin for WordPress. AnsPress adds a full question and answer system to your existing WordPress site. It can be used to create a Q&A network similar to StackOverflow and Quora, or be a single page on existing site. The plugin supports multiple languages, shortcodes, reCAPTCHA, email and push notifications, and more.
AnsPress is not just limited to questions and answers. It can be used in many different ways, like a bug tracker, an internal Q&A board, support ticket forum, FAQ, and more. Anspress is trusted and used by many popular companies and sites at scale.
Performance and Optimizations:
In our latest release, we’ve made big improvements to performance and have tested the plugin in many different server environments. It has run smoothly on every type of server with minimal impact on load times. AnsPress (including all of its functionalities) is very fast compared to other Q&A plugins. In the latest release we have made major improvements to reduce MySQL queries and to increase the page load speed for all page templates within the plugin.
Developer Friendly:
AnsPress is built with developers in mind and can easily be extended to fit your needs. All parts of the template layouts can be overridden. Our source code follows WP coding standards and is properly commented. We are working on a documentation site which will be available soon.
Contributors:
This plugin wouldn’t be possible without the huge amount of contributions we have received. Check our contributors at https://anspress.net/contributors/
Support and Demo:
We provide support on our site: https://anspress.net/questions 
Our support section uses the actual version of AnsPress, so you can check out the support site if you want to see full working version. 
You can also take the demo site for a test drive at https://anspress.net/demo/
AnsPress Key Features:
<ul>
<li>Submit / Filter / Order / Edit / Delete Question</li>
<li>Answer / Comment</li>
<li>Vote and Select Best Answer</li>
<li>Notification Emails and Web Push Notifications</li>
<li>10+ languages supported</li>
<li>Captcha supported</li>
<li>Shortcodes available</li>
<li>Private/Public for Question and Answer</li>
<li>Ability to Follow Questions / Answers</li>
<li>Featured (Sticky) Question</li>
<li>Closed questions</li>
<li>Flag/report questions and answers to moderator</li>
<li>Basic user profile</li>
<li>BuddyPress integration</li>
<li>More to come…</li>
</ul>
Free Add-ons:
<ul>
<li>Reputations</li>
<li>Tags</li>
<li>Categories</li>
<li>Bad words filter</li>
<li>Email notifications</li>
<li>reCaptcha</li>
<li>Dynamic text avatar</li>
</ul>
AnsPress is frequently updated and more features are added based on feedback from our users. This means you are welcome to give us feedback and suggestions as to what you would like to see or need in the plugin. Visit our Github project https://github.com/anspress/anspress or visit our community https://anspress.net/questions/ to get updates and leave feedback.
Page Shortcodes
Use this shortcode in the base page of AnsPress to work properly 
 [anspress]

AnsPress – Question and answer

Very nice plugins but much work is still needed.

Very nice plugins

A free question and answer plugin for WordPress. Made with developers in mind, and highly customizable.

wp-buy

mohmmed alagha

This simple FAQ plugin lets you create, organize and publish your FAQs (frequently asked questions) in a very simple way through your WordPress admin panel. With a modern accordion-style layout. 
Build your FAQs quick and easy with our simple options suitable for everyone, just choose your template and customize its options, all done! 
A very important feature is here, (FAQs by category) will allow you to categorize your FAQs as you want, also you can choose to add category image for every category and it will be shown in every supported template. 
We plan to publish new templates ASAP so keep this plugin in your list and check our changelog every update. 
The FAQs are responsive and will fit into any site. There are many features and customization options
<h4>All features</h4>
<ul>
<li>Responsive Design friendly to any mobile devices</li>
<li>Create FAQ categories</li>
<li>Easily add FAQs using FAQ custom post type.</li>
<li>Create FAQ posts and assign categories to them</li>
<li>Display FAQs in simple list style, accordion style or toggle style.</li>
<li>Custom CSS box in settings page to override default styles.</li>
<li>Easily add FAQs using FAQ custom post type accordion anywhere in the theme</li>
<li>Display FAQs in simple list style, accordion style or toggle style.</li>
<li>Display FAQs in groups.</li>
<li>Display FAQs in filterable groups.</li>
<li>Display FAQs in sorted order by title or date.</li>
<li>Settings page to customize colors and other stuff.</li>
<li>Translation Ready</li>
<li>Use via short-codes</li>
<li>Font Awesome Integrated</li>
<li>Bootstrap framework based</li>
<li>Hide All Accordion on page load or display all</li>
<li>All browser compatible</li>
</ul>

Advanced FAQ QA Creator by Category

This simple FAQ plugin lets you create, organize and publish your FAQs (frequently asked questions) in a very simple way through your WordPress admin  …

AnsPress – Question and answer vs Advanced FAQ QA Creator by Category