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.

Andrew Skochelias

Pavlo Kotula

WooCommerce Product Request – a quick order module or a “One Click Buy” module. It can significantly simplify the process of ordering products in your store that works on the WooCommerce engine. 
The module significantly simplifies the ordering process, as it’s enough to fill a minimal amount of fields right on the product page without going to the cart. 
All product requests are displayed in the admin panel of the site <code>wp-admin -> Product Requests</code>, as well as the plugin sends a duplicate message to the administrator by e-mail. 
In general, the plugin creates an application for the product, but does not reserve the goods in the warehouse. Therefore, it is important to quickly process applications and convert them into real orders.

Floating Quick Buy Button for WooCommerce vs WooCommerce Product Request