Nikos

KD Quiz adds an admin-friendly custom post type for quiz questions, plus a front-end shortcode that renders an animated flash card interface. The plugin includes:
<ul>
<li>Four default styles with a custom option for bespoke theming.</li>
<li>AJAX-powered question rotation, view tracking, and scoring without page reloads.</li>
<li>Optional automatic insertion based on content headings so you can drop quizzes into long-form articles without shortcodes.</li>
<li>JSON import/export to seed quizzes in bulk from external systems.</li>
</ul>
All user inputs are sanitized, escaped, and routed through WordPress nonces to protect your admin users and visitors. No third-party services are contacted.

KD Quiz – Interactive Quiz

Embed a lightweight, card-style quiz with AJAX rotation and scoring to boost engagement anywhere on your site.

Captain Up

<a href="https://captainup.com/" rel="nofollow ugc">Captain Up</a> boosts engagement on your WordPress site using game mechanics. Plug it in and immediately start rewarding users for engaging with your content, using points, levels, badges, and leaderboards, and keep them coming back for more.
Note: You will need to connect your WordPress site to a Captain Up account. If you don’t have one yet, contact us at team@captainup.com.
NEW: Rewards: Give your loyal users badges, trophies, coupons, and rewards.
NEW: Messaging: Communicate with your users, send them welcome messages, updates, and promotions.
Features:
<ul>
<li>
Total customization – You can create new badges that users get by visiting specific pages or categories on your WordPress site, or for liking your Facebook page. You can fully customize all badges and levels, including how they look and what users have to do to get each one.
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Works out of the box – With dozens of badges and levels, Captain Up gives your users a challenging gaming layer with a balanced learning curve, right away.
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Deep insights and statistics – Get to know your most passionate users. See who has the most Twitter followers and who brought you the most visitors. Understand how users are engaging with your WordPress site and how to improve your users’ experience.
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Widgets! – The Activity Widget shows recent activity on your site, bringing together and showcasing your vibrant community. The Leaderboard Widget gets users competing and comparing their progress against one another.
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Tons of actions – You can reward users for visiting your site regularly, Tweeting about it, Liking things, visiting specific pages, commenting, or watching videos on your site. Set up custom actions for anything our default actions don’t cover yet.
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<li>
Mobile support – Support for mobile and tablet devices.
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Localization – out of the box support for over 18 languages.
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Automatic support for WordPress User Integration and WordPress comments
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Deep analytics on user behavior
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In-app messages and notifications
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Custom theme & design
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</ul>
Shortcodes
You can add the Captain Up leaderboard widget or activity widget inside your posts using a shortcode:
<ul>
<li>
<code>[captain-leaderboard width="250px" height="400px" title="Leaderboard" leaderboard="all-time-ranking"]</code> – adds the leaderboard widget. All attributes are optional. By default the width of the widget will be 300 pixels, the height 400 pixels and the title will be “Leaderboard”. The leaderboard option selects the default leaderboard to show, can be either one of <code>"all-time-ranking"</code>, <code>"monthly-ranking"</code>, <code>"weekly-ranking"</code> or <code>"daily-ranking"</code>.
</li>
<li>
<code>[captain-activity width="250px" height="400px" title="Activity Feed"]</code> – adds the activity widget. All attributes are optional. By default the width of the widget will be 300 pixels, the height 400 pixels and the title will be “Activity”.
</li>
<li>
<code>[captain-sign-up text="Join the Game"]</code> – adds a link to join the Captain Up game. It will open the sign up modal, incentivizing your users to start playing. By default the text of the link will be “Sign Up Now”.
</li>
</ul>
Contributing Code
The source code for this plugin is available on <a href="https://github.com/CaptainUp/wordpress-captainup" rel="nofollow ugc">Captain Up’s GitHub account</a>. Pull Requests and issues are welcome.

Captain Up is an engagement platform for your WordPress blog. Quickly add badges, levels and leaderboards to your site and start rewarding your users.

KD Quiz – Interactive Quiz vs Captain Up