KestutisIT

Marius

First – differently than any other similar plugin, this plugin is based on MIT license, which is a holly-grail for premium theme authors on i.e. ThemeForest or similar marketplaces. 
Differently to standard GPLv2 license you are not required to open-source your theme and you CAN include this plugin into your premium websites bundle packs. 
I do say here bundle packs, because you should never have an deals section to be a part of your theme, because that would be a bad idea – you need to leave your customers a flexibility for the future scale: 
What if your customers will decide later go with some kind of fancy e-commerce marketplace system like in Amazon.com – if your customer will grow that big, he won’t need to have deals plugin anymore on their website, he will want to replace it with that fancy e-commerce marketplace system. 
So my advise is to include this plugin in your bundle pack’s <code>/Optional Plugins/</code> folder, so that you can tell about in the installation instructions, but make it fully independent from your theme.
Second – this plugin is fully MVC + Templates based. This means that it’s code is not related at all to it’s UI, and that allows you easily to override it’s UI templates and Assets (CSS, JS, Images) by your theme very easily (and there is detailed step-by-step instructions given how to do that). 
This means that you making a theme to be what the theme has to be – a UI part of your website, nothing more.
Third – it is much more secure than any other plugin’s on the market. It is based on top-end S.O.L.I.D. coding principle with input data validation with data-patterns, output escaping.
Fourth – this plugin is scalable – it’s source code is fully object-oriented, clean & logical, based on MVC architectural pattern with templates engine, compliant with strict PSR-2 coding standard and PSR-4 autoloaders, and easy to understand how to add new features on your own.
Fifth – this plugin works well with big databases & high-traffic websites – it is created on optimal BCNF database structure and was tested on live website with 1M customers database and 500,000 active daily views.
Sixth – it does support official WordPress multisite as network-enabled plugin, as well as it does have support WPML string translation. 
At this point, if you need more than one language, I’d strongly advise to go with official WordPress multisite setup, because it is free, it is official (so you will never need to worry about the future support), and, most important – WordPress multisite is much more suitable for websites that needs to scale. You don’t want to have that additional translation bottle-neck code layer to be processed via database.
Seventh – it has nice user experience – it’s has a default design, it does allow you to have more than 3 deals via different slider’s slides, as well as fading in and out description on mouse hover – so it is not static like what you usually get with Gutenberg.
But the most important is that this plugin is and always be ads-free. I personally really hate these freemium, ads-full or tracking plugins which makes majority of the plugins on w.org plugins directory (and, actually, many of premium marketplaces). So this is the key features we always maintain: 
1. Never track your data (nor even by putting some kind of GDPR-compliance agreement checkbox, like <code>Error Log Monitor</code> plugin), 
2. Never make it pseudo-ads-full (even such a big plugins like <code>WooCommerce</code> or <code>Contact Form 7</code> has nearly 80% of their home screen or 20% of their main buttons about <code>how to install \ buy other plugins</code> 
– this is a really ugly behavior of pushing-more and going to Facebook-like business, where you get like drug-addicted to company products).
The goal of this plugin is to full-fill the needs of website-starter, that needs a great tool which can last him for many years until it will grow that big so he would grow-out current plugins and would need some kind of different plugins.
And, I believe, that many other developers had the same issue when tried to create their first premium theme or set-up a website for their client. Starting with the issues with license type to the moment when deals section is <code>hardcoded</code> into theme code.
So I wanted to help all these developers to save their time, and I’m releasing this plugin for you to simplify your work. And I’m releasing it under MIT license, which allows you to use this plugin your website bundle without any restrictions for both – free and commercial use.
Plus – I’m giving a promise to you, that this plugin is and will always be 100% free, without any ads, ‘Subscribe’, ‘Follow us’, ‘Check our page’, ‘Get Pro Version’ or similar links.
Finally – the code is poetry – the better is the web, the happier is the world.
<h3>Live Demo</h3>
<a href="https://nativerental.com/cars/" title="Deals (Live Demo)" rel="nofollow ugc">Deals (Live Demo)</a>
<h3>GitHub Repository (for those, who want to contribute via “Pull Requests”)</h3>
<a href="https://github.com/SolidMVC/Deals" title="Deals @GitHub" rel="nofollow ugc">https://github.com/SolidMVC/Deals</a>

Deals

And the link feature is very appreciated.

Greatest slider for deals

It’s a MIT-licensed (can be used in premium themes), high quality, native and responsive WordPress plugin to create and view slider-based deals

Freemius

DotCamp

Istiak Rayhan

Imtiaz Rayhan

Ultimate Blocks

WP Coupons and Deals

WP Table Builder

WPLeaders

Mohmed Saad Eldein

Best WordPress Coupon plugin to promote affiliate coupon and deals on your WordPress site. Present Coupons and Deals the right way. Protect affiliate sales and generate more revenue.
<a href="https://wpcouponsdeals.com/coupon-templates-demo/" rel="nofollow ugc">Live Demo</a>
<h3>Key Features</h3>
<ul>
<li>Very lightweight, loads fast.</li>
<li>Responsive and attractive shortcode.</li>
<li>Live Preview of the coupon as you create it.</li>
<li>Insert shortcode directly from the post editor.</li>
<li>Click to copy functionality.</li>
<li>Voting System for individual coupons.</li>
<li>Social Share Buttons for individual coupons.</li>
<li>Widget to show coupons and deals on widget areas.</li>
<li>Easy to use settings.</li>
<li>Coupon categories to categorize your coupons.</li>
<li>Expiration system to show coupon expiration.</li>
<li>Stylesheets and scripts are loaded conditionally for better performance.</li>
</ul>
[UPDATE] From version 2.8.0 – we have AMP support for all coupon shortcodes.
<h3>Pro Features</h3>
<ul>
<li>Hide Coupons.</li>
<li>Coupon expiration countdown.</li>
<li>Coupon Templates.</li>
<li>Show Specific Coupons.</li>
<li>Show Coupons of specific Category.</li>
<li>Show Coupons of specific Vendor.</li>
<li>Coupons Archive Page.</li>
<li>Frontend Coupon Submission.</li>
</ul>
You can upgrade to Pro Version from your dashboard. <a href="https://wpcouponsdeals.com" rel="nofollow ugc">More Info and Demo of Pro Version</a>
Here’s a video to quickly show you how the plugin works.
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/ZeeMcHQMdx8?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
WP Coupons and Deals is a Coupon plugin that lets you add coupons, deals to your posts, pages with a simple and beautiful shortcode.
You can also show coupons and deals on your sidebar or other widget areas using an widget.
You can create three types of coupon.
<ul>
<li>Coupon</li>
<li>Deal</li>
<li>Image</li>
</ul>
The coupon shortcode comes with the functionality to click to copy coupon. That means when users click on the coupon code, the coupon code will be copied to clipboard.
When coupon is copied, a link is opened in a new tab. You can use your affiliate link here. So when users copy the coupon code, your affiliate link is opened in a new tab. 
This way you can generate more sales from your coupon codes.
Deal shortcode looks the same as the coupon type. Only difference is instead of coupon code, a button is showed which can say anything you want, like – ‘Get This Deal’, ‘Claim This Deal’.
Also, when users click on this button, nothing is copied. Only your link opens in a new tab.
With both the coupon types, a discount amount/text is shown on the left, so users immediately know what the coupon code/deal is about. Below the discount amount/text coupon type is shown i.e whether it is a coupon code or a deal.
Both coupon code/deal button shows a little tooltip text to make it more attractive. You can set what text is showed here.
Expiration date or text is shown on the right below the coupon code/deal button. If coupon/deal is expired, an expired message is shown. You can show your own text here. 
If any coupon/deal doesn’t expire, another text is shown. You can customize that too.
You can customize the date format of the expiration date. Make sure you update expiration date of your old coupons, otherwise the previous date format will be shown.
Now you can also show only the coupon code instead of the full coupon with details. You can select the shortcode type from the shortcode inserter.
Image coupons are just images. You can upload image of a coupon and give users the option to print the coupon.
<a href="http://coderisk.com/wp/plugin/wp-coupons-and-deals/RIPS-rvl4OVYuaz" rel="nofollow ugc"></a>
<h3>How To Use</h3>
After you have installed the plugin, you can see ‘Coupons’ with a little scissor on your admin dashboard menu. 
Under that section, there are four items – Coupons, Add New Coupon, Coupon Categories, Settings.
<ol>
<li>Coupons shows the list of all coupons you have added. The list shows options like Coupon type, Coupon Code, Description, Link, Category, Shortcode, Expires.</li>
<li>Add New Coupon is where you’ll add new coupons.</li>
<li>Coupon Categories shows the categories, You can also create categories here.</li>
<li>Settings contains some general settings you can set.</li>
</ol>
After you have added a new coupon, you have to insert a shortcode in your posts to show the coupon. You can find the shortcode from the coupons list page. You can copy from there and paste on post editor. 
The easiest way is to insert the shortcode from the post editor. When you’re on the post editor, you can see an ‘Add Coupon’ button beside the Add Media button.
Click on that, an window pops up. A list of all your added coupon is showed. There select the coupon code you want to insert and choose the shortcode type. Then click on ‘Insert Coupon Shortcode’ button. 
Shortcode will be inserted on your post with corresponding ID. Now save your post and you can see your shortcode on your post.
You’re done!
Note: We use <a href="https://freemius.com" rel="nofollow ugc">Freemius</a> to collect some basic data about your usage to improve the plugin. We only collect if you allow us to. You can opt out any time to stop sharing your data with us.
<h3>Join Us To Get Updates and Resources</h3>
<ul>
<li><a href="https://wpcouponsdeals.com?utm_medium=wp.org&utm_source=wordpressorg&utm_campaign=readme&utm_content=ultimateblocks" rel="nofollow ugc">Visit WP Coupons and Deals Website</a></li>
<li><a href="https://twitter.com/WPCD_Plugin" rel="nofollow ugc">Follow Us on Twitter</a></li>
<li><a href="https://www.facebook.com/groups/wpcdPlugin/" rel="nofollow ugc">Join Our Facebook Group</a></li>
</ul>
<h3>Other WordPress Tools By Me</h3>
<ul>
<li><a href="https://wptablebuilder.com/" rel="nofollow ugc">WP Table Builder</a> – The Drag & Drop WordPress Table Plugin.</li>
<li><a href="https://ultimateblocks.com/" rel="nofollow ugc">Ultimate Blocks</a> – The #1 Gutenberg Blocks Plugin for Content Creators. </li>
<li><a href="https://groundwp.com/" rel="nofollow ugc">GroundWP</a> – WordPress Block Theme For Efficient Site Building.</li>
</ul>

WP Coupons and Deals – WordPress Coupon Plugin

Best WordPress Coupon Plugin. Generate more affiliate sales with coupon codes and deals.

Deals vs WP Coupons and Deals – WordPress Coupon Plugin