Anchor

• Plugin page: https://plogins.com/anchor/
• Documentation: https://plogins.com/anchor/docs/
• Author: WPPoland.com
• WordPress.org contributor: motylanogha
• Source: https://github.com/wppoland/anchor

Anchor adds a slim, sticky add-to-cart bar to WooCommerce single product pages. It stays hidden until the shopper scrolls past the native add-to-cart form, then slides up from the bottom of the screen showing the product title (linked), the price and a buy button, so the purchase control is still one tap away on a long page.

What it does

The bar is fixed to the bottom edge of the viewport and starts hidden, so it never occupies document flow and causes zero Cumulative Layout Shift. On a simple, in-stock product the bar’s button is a real add-to-cart form. On a variable product the bar mirrors WooCommerce’s native variations form: until the shopper picks a valid combination it shows a Choose options button that scrolls back to the selectors; once a variation is found, the bar copies its price and stock status and enables the add button.

The free edition is the full GPL product, not a trial with hidden limits.

What it is, precisely

• One sticky bar on single product pages, revealed once the shopper scrolls past the main add-to-cart form.
• Two settings: a master on/off toggle and a scroll threshold in pixels (0-5000, default 300). That is the whole settings screen.
• Variation-aware, listens to WooCommerce’s found_variation, reset_data and hide_variation events; Anchor ships no jQuery of its own.
• Accessible, an ARIA region (role="region", aria-label), aria-hidden toggled on reveal, a live price region on variable products, a visible focus ring, and prefers-reduced-motion honoured.
• Light- and dark-aware, colours switch on prefers-color-scheme and inherit your theme’s preset colours where exposed.
• Loads nothing elsewhere, the CSS and JS enqueue only on is_product() pages, and only when the bar is enabled; the script is deferred and in the footer.

What it is not

The bar position is fixed to the bottom (it is not configurable to the top), there is no per-device show/hide setting, and the bar shows the title, price and button only, there is no thumbnail toggle and no quantity field. These are deliberate: the bar stays slim and correct without configuration. Reveal point is the one thing you tune, via the scroll threshold.

Editions

• Free on WordPress.org, the sticky bar with the enable toggle, the scroll-threshold control, and variation-aware price/availability sync.
• Pro (Anchor Pro), custom button colour and label, plus placement rules by product and category; scheduling and analytics remain planned.

Polski overlap

If you run Polski for WooCommerce with a storefront sticky-bar module enabled, do not also install Anchor, pick one to avoid two bars on the same page.

Next steps

• Getting started, install, enable the bar, set the scroll threshold and verify on the storefront.
• Configuration, the two settings, what is fixed by design, and the extension hooks.
• Using the sticky bar, exactly what shoppers see on simple and variable products.