bankthaworn

Sticky add to cart plugin provide high performance for e-commerce store because in currently most user visit website via mobile device. So user interface of youe site paticularly e-commerce site should be adapt to this trend. This plugin responds to this very strongly.
Sticky add to cart plugin will move old add to cart button for woocommerce plugin to fix at the end of mobile screen. This plugin also keep button style following your theme is. So don’t worry about inconsistency of UI.
Features of this plugin:
<ul>
<li>Use for Woocommerce</li>
<li>Show result on mobile & tablet screen only</li>
<li>Keep button style following your theme</li>
<li>Support all browsers</li>
</ul>

Sticky Add to Cart

Move old add to cart button for woocommerce plugin to fix at the end of mobile screen

WebTend

Boostly is a modular conversion toolkit for WooCommerce. Enable only the modules you need — each one is independent, so disabled modules load zero CSS or JavaScript.
Instead of installing multiple plugins for Quick View, Sticky Add to Cart, Direct Checkout, Trust Badges, Free Shipping Bars, and Sales Notifications, Boostly combines essential conversion-focused features into one lightweight and modular solution.
Enable only the modules you need. Disabled modules load no CSS or JavaScript, helping keep your WooCommerce store fast and optimized. 
📖 <a href="https://webtend.net/docs/boostly-doc.html" rel="nofollow ugc">Full Documentation</a>
<h4>8 Modules Included</h4>
<ul>
<li>Quick View — Modal product preview with AJAX add to cart and variable product support.</li>
<li>Direct Checkout — One-click Buy Now button that skips the cart and goes straight to checkout.</li>
<li>Sticky Add to Cart — Floating bar with thumbnail, price, quantity and ATC button that appears on scroll.</li>
<li>Free Shipping Progress Bar — Animated goal bar to motivate larger cart values.</li>
<li>Sales Notifications — Recent purchase popups. Real orders, virtual entries, or a mixed mode.</li>
<li>Stock Scarcity Messages — Two-tier urgency messaging for low stock and critical stock states.</li>
<li>Recently Viewed Products — Horizontal carousel powered entirely by localStorage. No server overhead.</li>
<li>Trust Badges — Payment and security badges below Add to Cart. 12 inline SVGs. No external CDN.</li>
</ul>
<h4>Why Boostly?</h4>
<ul>
<li>Modular — Toggle each module independently. Disabled modules add zero overhead.</li>
<li>Lightweight — Vanilla JavaScript, scoped CSS, no frontend framework. Under 15KB per module on average.</li>
<li>Performance-first — Assets load only on pages where a module actually renders.</li>
<li>WooCommerce-native — Built entirely on WooCommerce hooks and template standards. Full HPOS compatibility.</li>
<li>Variable product support — All applicable modules handle WooCommerce variable products out of the box.</li>
<li>Translation-ready — Every string uses proper WordPress i18n functions.</li>
<li>Privacy-aware — Recently Viewed uses localStorage only. Sales Notifications supports virtual entries.</li>
</ul>

Boostly – Conversion Booster for WooCommerce

WooCommerce conversion toolkit: Quick View, Sticky Add to Cart, Direct Checkout, Trust Badges, Free Shipping Bar, Sales Notifications and more.

Sticky Add to Cart vs Boostly – Conversion Booster for WooCommerce