kraftpixel

Here is a plugin that allows your e-commerce site to float a customizable buy button at the bottom of your mobile screen after a certain scroll-depth that you enter (the default is 200). This should help you in your e-commerce conversions. The goal of the plugin is to help you improve e-commerce conversions on your mobile devices.
You can tweak the color, the button action — add to cart or buy now and more.
Please note: 
1. The buy button will only be visible on mobile devices. 
2. This is a plugin in beta phase; please give your feedback on the plugin forum on WordPress.org

Floating Quick Buy Button for WooCommerce

The floating buy button plugin for WooCommerce to help improve e-commerce conversions on mobile. Plugin developed with love at KraftPixel.

Varun Sridharan

Vaa Host &amp; Tech

Add Quick buy button to redirect user to checkout / cart immediately when he click quick buy button. 
When User Clicks This Button. The Current product Will Be Added To Cart And The User Will Be Redirected To Cart Page
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/z_RgdNVZvj4?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>
Supported & Tested Product Types
<blockquote>
<ol>
<li><a href="http://woocommerce.com/" rel="nofollow ugc">WC Simple Product</a></li>
<li><a href="http://woocommerce.com/" rel="nofollow ugc">WC Grouped Product</a></li>
<li><a href="http://woocommerce.com/" rel="nofollow ugc">WC Variable / Variation Product</a></li>
<li><a href="https://woocommerce.com/products/product-add-ons/" rel="nofollow ugc">WooCommerce Product Add-Ons</a></li>
<li><a href="https://woocommerce.com/products/product-bundles/" rel="nofollow ugc">WooCommerce Product Bundles</a></li>
<li><a href="https://woocommerce.com/products/woocommerce-subscriptions/" rel="nofollow ugc">Woocommerce Variable / Simple Subscriptions</a></li>
<li><a href="https://wordpress.org/plugins/yith-woocommerce-product-bundles/" rel="ugc">YITH Product Bundles</a></li>
<li><a href="https://wordpress.org/plugins/yith-woocommerce-product-add-ons/" rel="ugc">YITH WooCommerce Product Add-Ons</a></li>
<li><a href="https://wordpress.org/plugins/yith-woocommerce-subscription/" rel="ugc">YITH WooCommerce Subscription</a></li>
<li><a href="https://wordpress.org/plugins/added-to-cart-popup-woocommerce/" rel="ugc">WooCommerce added to cart popup (Ajax)</a></li>
</ol>
</blockquote>
Settings Available Under
<blockquote>
Woocommerce Settings ==> Products ==> WC Quick Buy
</blockquote>
<h3>Shortcodes</h3>
<code>[wc_quick_buy]</code> 
This can be used anywhere inside the website
<blockquote>
<ol>
<li>product : product id to generate quick buy button Eg : [wc_quick_buy product=”22″]</li>
<li>label : custom text for generated button Eg : [wc_quick_buy label=”Hurry Up!!”]</li>
<li>hide_in_cart : Enter “yes” to hide the button if the same product already in cart or enter “no”</li>
<li>css_class : You can give your custom css class name in shortcode to add it in button.</li>
<li>qty : Enter custom qty for a html button / link [wc_quick_buy qty=”10″]</li>
</ol>
</blockquote>
<code>[wc_quick_buy_link]</code> 
This can be used to generate sharable link
<blockquote>
<ol>
<li>product : product id to generate quick buy button Eg : [wc_quick_buy_link product=”22″]</li>
<li>qty : Enter custom qty for a html button / link [wc_quick_buy_link qty=”10″]</li>
</ol>
</blockquote>
Example Shortcode To Get Clickable Button
<blockquote>
[wc_quick_buy product=”33″ label=”Hurry UP!!” qty=”100″]
</blockquote>
Example Shortcode To Get Product’s Quick Buy URL
<blockquote>
[wc_quick_buy_link product=”33″ qty=”100″]
</blockquote>

Quick Buy For Woocommerce

Add Quick buy button to redirect user to checkout / cart immediately when he click quick buy button

Floating Quick Buy Button for WooCommerce vs Quick Buy For Woocommerce