Upsell Blast Lite — Upsell & Cross-Sell for WooCommerce

Yes. The side cart is added to the page independently of your theme; point "Open-cart CSS selector" in Settings at your theme's existing cart icon/link to open it from there.

Two things to check: the feature is enabled in Settings (each has its own on/off switch), and the product actually has the data these features read from. The upsell bundle needs at least one product added to that product's own "Upsells" field, and cart cross-sell needs "Cross-sells" — both under Product data → Linked Products. Related Products needs no per-product setup; it uses WooCommerce's own category/tag matching automatically.

The side cart and the checkout process both work fine alongside the block-based Checkout. The one exception is Cart Cross-Sell's "Where to show it" position setting: if your Cart page itself was built with the WooCommerce Cart block instead of the classic cart, there's no classic hook for that position to attach to, and Settings will show a warning about it. Add a Shortcode block to that page with [sgbl_cart_upsell] instead — it renders regardless of how the page is built.

It renders inside the side cart, so enable Side Cart in Settings first, then turn on "Enable free-shipping progress bar" under the Side Cart → Free Shipping Bar sub-section and set your threshold.

Yes. A variable product in the bundle gets a "Select Options" picker right there in the box — choose a Size/Color/etc. and it's added along with everything else when "Add All To Cart" is clicked. A grouped product has no price or stock of its own to add to cart with, so WooCommerce doesn't consider it purchasable and it won't appear as an upsell at all, the same as everywhere else in the plugin. The optional AJAX add-to-cart setting (for the main product page form) only speeds up simple products either way; a variable product there still adds to cart normally with a page reload.

All three are configurable in Settings — set "Max products shown" to any number (the upsell bundle shows up to that many of the products you've added to that product's "Upsells" field). Related Products and Cart Cross-Sell also have a "Products per row" setting controlling how many appear per row before wrapping to the next.

Yes. The upsell bundle, related/cart cross-sell grid, and side cart each have their own background and text color fields in Settings, independent of one another, plus one shared "Primary" accent color for buttons and prices across all three. Set a dark background with a light text color on any block to match a dark-themed store.

Yes — Upsell Blast Pro adds automatic category/tag targeting, the add-to-cart popup, Buy More Save More, checkout Order Bump, Sales Popups, and more. See the "Upgrade to Pro" tab in Settings for the full comparison.

Yes — Lite and Pro use the same option names, so activating Pro carries every setting over automatically.

No. Every asset ships inside the plugin itself. The only outbound link anywhere in the plugin is the "Upgrade to Pro" tab, which is plain text linking to salesgen.io — nothing is fetched from it.