Poletto 1976

CartTrigger – Quantity Discounts is a lightweight WooCommerce plugin that encourages customers to buy more by showing a notice when they reach a trigger quantity, and automatically applying a discount when they hit the target quantity.
Each discount rule is fully configurable:
<ul>
<li>Trigger qty — the cart quantity at which the promotional notice is shown</li>
<li>Target qty — the quantity that unlocks the automatic discount</li>
<li>Discount type — percentage (%) or fixed amount</li>
<li>Discount scope — apply to the entire cart subtotal or only to the matched items’ subtotal</li>
<li>Category filter — limit the rule to one or more product categories (subcategories included automatically)</li>
<li>SKU filter — target one or more specific products by SKU (takes priority over category)</li>
<li>Notice position — show on cart/checkout only, product page only, or both</li>
<li>Custom CSS class — style each notice independently with your own CSS</li>
<li>Conflict mode — control how the plugin behaves when other discounts (coupons) are already active in the cart</li>
</ul>
Key features:
<ul>
<li>Multiple rules with independent triggers and targets</li>
<li>Best-discount logic: when multiple rules share the same target and scope, only the highest discount is applied</li>
<li>Product page notices via a dedicated template with its own text and CSS class</li>
<li>Coupon conflict modes: stack, exclusive, or best-discount-wins</li>
<li>Full support for WPML and Polylang (notice text registered as translatable string)</li>
<li>Compatible with WooCommerce HPOS (Custom Order Tables)</li>
<li>No bloat — zero external dependencies, no JavaScript on the frontend</li>
</ul>
Available notice variables:
<pre><code>{current} — current quantity in cart
{missing} — quantity still needed to reach the target
{target} — target quantity
{discount} — formatted discount value (e.g. *10%* or *€5.00*)
</code></pre>

CartTrigger – Quantity Discounts

Show cart notices and apply automatic discounts when customers reach a quantity threshold — configurable per category, or SKU.

robertoiacono

RIACO Smart Quantity Discount is the easiest way to add powerful, flexible pricing promotions to your WooCommerce store. Whether you want to reward bulk buyers, run a Buy-One-Get-One campaign, or offer targeted discounts based on cart value or customer role, this plugin handles it all from a clean admin interface — no coding required.
<h3>Why store owners love it</h3>
Increase average order value. Tiered quantity discounts nudge customers to add one more item to unlock the next deal tier. Show the full pricing table right on the product page so shoppers always know the best price they can get.
Run BOGO promotions in minutes. Set up “Buy 2, Get 1 Free” (or any buy-X-get-Y ratio) and the plugin automatically adds the free product to the cart. When the qualifying item is removed, the free item disappears too — no manual cleanup needed.
Target the right customers. Apply rules only to specific products or categories, restrict them to certain user roles (e.g., wholesale members), or trigger them only when the cart reaches a minimum subtotal. Combine multiple conditions with AND/OR logic.
Non-destructive pricing. The plugin never overwrites WooCommerce’s own sale prices with a worse deal. If a product is already on sale, your rules only kick in when they give a better price — your existing promotions stay safe.
Priority-based rule stacking. Create as many rulesets as you need. Assign each one a priority number so you stay in full control of which rules are applied first. No unexpected conflicts, no surprises at checkout.
Works with block checkout. Fully compatible with the WooCommerce block cart and block checkout. BOGO free items show a “FREE” label, quantity fields are locked, and the remove button is hidden — giving customers a polished, confusion-free experience.
<h3>Key features</h3>
Discount types
<ul>
<li>Simple discount — apply a flat percentage or fixed amount off a product price, with optional conditions.</li>
<li>Quantity / volume discount — define multiple tiers (e.g., buy 3–5 → 10% off, buy 6+ → 20% off). A pricing table on the product page shows every tier at a glance.</li>
<li>BOGO (Buy X, Get Y Free) — automatically add free items to the cart based on a configurable buy threshold and free-item quantity.</li>
</ul>
Condition targeting
<ul>
<li>Target specific products or product categories</li>
<li>Restrict by cart subtotal (minimum order amount)</li>
<li>Restrict by user role (great for wholesale or VIP tiers)</li>
<li>Combine multiple conditions with AND / OR logic</li>
</ul>
Rule management
<ul>
<li>Unlimited rulesets — create as many as your store needs</li>
<li>Priority field — lower number = evaluated first; full control over application order</li>
<li>Activate / Deactivate individual rules or in bulk without deleting them</li>
<li>Duplicate any ruleset to a draft copy in one click</li>
</ul>
Frontend display
<ul>
<li>Auto-rendered pricing table on product pages for quantity discount rules</li>
<li>Auto-rendered BOGO deal table on product pages for BOGO rules</li>
<li>“FREE” badge on BOGO line items in block cart / checkout</li>
</ul>
Developer-friendly
<ul>
<li>5 action hooks and 6 filter hooks covering every stage of discount evaluation</li>
<li>All strings translatable via standard <code>__()</code> with text domain <code>riaco-smart-quantity-discount</code></li>
<li>Extensible discount types and condition types — add your own via filters</li>
</ul>
<h3>Developer Hooks</h3>
<h3>Actions</h3>
<code>riaco_sqd_loaded</code> 
Fires after all plugin components are initialized. Use this to register integrations or extensions that depend on the plugin being ready.
<code>riaco_sqd_before_apply_discounts( $cart )</code> 
Fires once per cart recalculation, before any ruleset is evaluated. Useful for pre-computation or logging.
<code>riaco_sqd_after_apply_discounts( $cart, $discounted_cart_item_keys )</code> 
Fires after all rulesets have been evaluated. <code>$discounted_cart_item_keys</code> is an array keyed by cart item key; each value is <code>['price' => [...] | null, 'bogo' => [...] | null]</code>.
<code>riaco_sqd_price_discount_applied( $cart_item_key, $regular_price, $plugin_price, $ruleset )</code> 
Fires whenever a simple or quantity price discount is applied to a cart item.
<code>riaco_sqd_bogo_item_added( $added_cart_item_key, $parent_cart_item_key, $ruleset )</code> 
Fires when a new BOGO free item is added to the cart.
<h3>Filters</h3>
<code>riaco_sqd_active_ruleset_ids( $ruleset_ids )</code> 
Modify the ordered array of ruleset IDs that will be evaluated. Return a filtered or reordered array.
<code>riaco_sqd_item_qualifies_for_ruleset( $qualifies, $product_id, $cart_item_key, $ruleset )</code> 
Override whether a cart item qualifies for a given ruleset. Return <code>true</code> or <code>false</code>.
<code>riaco_sqd_item_discounted_price( $plugin_price, $cart_item, $cart_item_key, $ruleset )</code> 
Adjust the final discounted price before it is set on the product. The engine clamps the return value to <code>max(0, ...)</code> after this filter, so a negative return is safe.
<code>riaco_sqd_bogo_free_quantity( $desired_free_qty, $cart_item, $cart_item_key, $ruleset )</code> 
Cap or scale the number of free BOGO items added. Return value is cast to <code>int</code> and floored at <code>0</code>.
<code>riaco_sqd_condition_result( $condition_met, $type, $operator, $value, $product_id, $subtotal )</code> 
Override the boolean result of any individual condition check. Also the correct extension point for custom condition types — the built-in evaluation returns <code>false</code> for unknown types; hook here to handle them.
<code>riaco_sqd_discount_types( $types )</code> 
Append custom discount type slugs to the allowed list (e.g. from a PRO add-on).
<code>riaco_sqd_condition_types( $conditions )</code> 
Append custom condition type definitions to the admin conditions metabox.

RIACO Smart Quantity Discount for WooCommerce

Boost WooCommerce sales with quantity discounts, BOGO deals, and smart cart rules — no code needed. Built for speed, built for store owners.

CartTrigger – Quantity Discounts vs RIACO Smart Quantity Discount for WooCommerce