# PlugStack

> PlugStack: focused WordPress plugins, free web tools, AI website prompts with live demos, and WordPress development services.

Site: https://plugstack.dev/ · Contact: hello@plugstack.dev · Updated: 2026-09-30

## Plugins

- [Qtyra Quantity Rules & Tiered Pricing](https://plugstack.dev/plugins/qtyra-quantity-rules-tiered-pricing/?format=md): Minimum, maximum, step quantity rules and tiered (bulk) pricing for WooCommerce — enforced on the product page, shop grid, cart and block checkout. Free on WordPress.org, Pro from $24.99/yr.
- [Qtyra Quote Requests & Catalog Mode for WooCommerce](https://plugstack.dev/plugins/qtyra-quote-requests-catalog-mode/?format=md): Hide prices, replace Add to Cart with a Request a Quote button, and turn accepted quotes into paid WooCommerce orders. Free on WordPress.org, Pro from $24.99/yr.

## Documentation

- [Getting started with Qtyra Quote Requests](https://plugstack.dev/docs/qtyra-quote-requests-catalog-mode/?format=md): Qtyra Quote Requests hides prices, swaps Add to Cart for a Request a Quote button and turns accepted quotes into WooCommerce orders. This page covers your first ten minutes. Install Install and activate the plugin. WooCommerce 7.1 or newer is required. Go to WooCommerce > Settings > Quotes & Catalog. Tick Enable Catalog Mode and […]
- [Getting started with Qtyra Quantity Rules & Tiered Pricing](https://plugstack.dev/docs/qtyra-quantity-rules-tiered-pricing/?format=md): Qtyra Quantity Rules & Tiered Pricing adds minimum, maximum, step and default quantity rules to WooCommerce and enforces them on every path to the cart — the product page, the shop grid, carousels, the block cart and checkout, and the Store API. Pro adds quantity-based pricing and wholesale tooling. Requirements Works with classic and block […]
- [Hide prices and Add to Cart](https://plugstack.dev/docs/qtyra-quote-requests-catalog-mode/hide-prices-catalog-mode/?format=md): Catalog mode decides who sees prices and the Add to Cart button. Everything lives under WooCommerce > Settings > Quotes & Catalog. The basics Enable Catalog Mode turns the feature on for your store. Hide Product Prices removes the price. Custom Price Text replaces it with a message such as “Call us for pricing”. Hide […]
- [Store-wide settings](https://plugstack.dev/docs/qtyra-quantity-rules-tiered-pricing/store-wide-settings/?format=md): Everything under WooCommerce → Settings → Quantity & Pricing. Values here are the base every product inherits; category, product, variation and role rules override individual fields. General Front-end behaviour Advanced
- [Product and variation rules](https://plugstack.dev/docs/qtyra-quantity-rules-tiered-pricing/product-and-variation-rules/?format=md): How inheritance works Rules are resolved per field, not per product. For each of min, max, step and default the most specific value wins: A blank field means inherit. So a product with only min = 4 filled keeps the store’s step and maximum. Setting a product rule Variations Each variation has the same fields […]
- [Customer messages](https://plugstack.dev/docs/qtyra-quantity-rules-tiered-pricing/customer-messages/?format=md): All wording lives under WooCommerce → Settings → Quantity & Pricing → Messages. Leave a field blank to keep the default text. Every message is translatable and can also be overridden with the qmtp_message filter. Placeholders Messages and defaults
- [Turn a quote into an order](https://plugstack.dev/docs/qtyra-quote-requests-catalog-mode/quote-to-order/?format=md): When a customer sends a request, you can answer with a price and a payment link without leaving WordPress. Open WooCommerce > Quotes and click the request. Type the agreed unit price for each product under Offered Price. Choose a shipping method and cost, then click Create WooCommerce Order. Click Send Offer Email. The customer […]
- [Tiered pricing](https://plugstack.dev/docs/qtyra-quantity-rules-tiered-pricing/tiered-pricing/?format=md): Quantity price breaks: the more a shopper buys, the lower the unit price. In the free version tiers are set per product and per variation. Pro adds category-wide and store-wide default tables — the most specific table wins as a whole (tables are not merged). Creating a tier table Settings Under WooCommerce → Settings → […]
- [Role, category and cart-level rules (Pro)](https://plugstack.dev/docs/qtyra-quantity-rules-tiered-pricing/roles-categories-cart-rules/?format=md): Role-based rules Settings → Quantity & Pricing → Advanced rules → Store-wide role overrides lets each role — including Guest (not logged in) — override min / max / step / default store-wide. The same table exists per product under the Quantity & Pricing tab. Typical setup: A user with several roles gets the most […]
- [Bulk editor and CSV import / export (Pro)](https://plugstack.dev/docs/qtyra-quantity-rules-tiered-pricing/bulk-editor-csv/?format=md): Bulk apply WooCommerce → Bulk Quantity Rules. Choose Apply to products: All products or Products in categories. Tick the Fields to set (only ticked fields are written; everything else is left as it is), optionally Also write the rule onto each variation, and optionally Replace tiers with one tier per line as from,to,mode,value (e.g. 10,49,percent,10). […]
- [Activating your Pro licence](https://plugstack.dev/docs/qtyra-quote-requests-catalog-mode/activate-pro-licence/?format=md): Install Pro Download the Pro ZIP from your purchase email or your Freemius account. Go to Plugins > Add New > Upload Plugin, choose the ZIP, click Install Now, then Activate. If the free version is still active, that is fine. Pro takes over and the free copy stays idle. Your settings and quotes are […]
- [Activating your Pro licence](https://plugstack.dev/docs/qtyra-quantity-rules-tiered-pricing/activate-pro-licence/?format=md): Install Pro Managing the licence Move to another site — on the old site: WooCommerce → Quantity & Pricing → Manage licence → Deactivate License. Then activate the key on the new site. Change key / renew / billing — the same Manage licence page. Sync licence — if you renewed or changed plans and […]
- [Troubleshooting](https://plugstack.dev/docs/qtyra-quote-requests-catalog-mode/troubleshooting/?format=md): I still see prices or Add to Cart Check that Enable Catalog Mode is ticked, and that the product is inside the scope you chose. If you enabled the administrator exemption, view the shop while logged out or in a private window. The button does nothing, or the popup does not open If your theme […]
- [Troubleshooting](https://plugstack.dev/docs/qtyra-quantity-rules-tiered-pricing/troubleshooting/?format=md): The +/- buttons ignore my step Your theme ships its own stepper. Turn on Replace theme stepper in Settings → Quantity & Pricing → General. The hint or stepper is missing on a custom page Page builders and landing pages are not always detected. Turn on Load assets everywhere under Advanced. A quantity got into […]

## Free tools

- [Tiered Pricing Calculator](https://plugstack.dev/tools/tiered-pricing-calculator/?format=md): Free tiered pricing calculator: build quantity breaks (volume discounts) that never drop below your minimum margin. Shows unit price, margin and profit per tier. CSV export.
- [Wholesale Price Calculator](https://plugstack.dev/tools/wholesale-price-calculator/?format=md): Free wholesale price calculator: from your unit cost and margins, get your wholesale price, the distributor price and a suggested retail price (MSRP). Keystone pricing included.
- [Profit Margin Calculator](https://plugstack.dev/tools/profit-margin-calculator/?format=md): Free profit margin calculator: enter any two of cost, price and margin to get the third, plus markup, profit per unit and a price table for target margins.
- [Markup Calculator](https://plugstack.dev/tools/markup-calculator/?format=md): Free markup calculator: get the selling price from cost and markup %, or the markup from cost and price. Shows the matching profit margin too.
- [Discount Calculator](https://plugstack.dev/tools/discount-calculator/?format=md): Free discount calculator: sale price after a percent or fixed discount, percent off between two prices, original price from a sale price, stacked discounts and sales tax.
- [PayPal Fee Calculator](https://plugstack.dev/tools/paypal-fee-calculator/?format=md): Free PayPal fee calculator with 2026 US rates: PayPal Checkout 3.49% + $0.49, goods & services, cards, Venmo, international. See the fee, what you receive and what to charge.
- [Stripe Fee Calculator](https://plugstack.dev/tools/stripe-fee-calculator/?format=md): Free Stripe fee calculator with 2026 US pricing: 2.9% + 30¢ cards, +1.5% international cards, +1% currency conversion, ACH. See the fee, your payout and what to charge.
- [Credit Card Processing Fee Calculator](https://plugstack.dev/tools/credit-card-processing-fee-calculator/?format=md): Free credit card processing fee calculator: any rate (% + fixed), monthly and yearly fee totals, the amount to charge to cover fees, and a side-by-side comparison of PayPal, Stripe, WooPayments and Square.
- [Barcode Generator](https://plugstack.dev/tools/barcode-generator/?format=md): Free online barcode generator: Code 128, EAN-13, UPC-A, EAN-8, ITF-14, Code 39 and more. Download PNG or SVG, or make a printable sheet from a list. No sign-up, no watermark.
- [SKU Generator](https://plugstack.dev/tools/sku-generator/?format=md): Free SKU generator: turn a product list with categories, colours and sizes into consistent, unique SKUs. Choose prefix, separator and numbering, then export a WooCommerce-ready CSV.
- [GTIN Check Digit Calculator & Validator](https://plugstack.dev/tools/gtin-check-digit-calculator/?format=md): Free GTIN checker: validate UPC-A, EAN-13, EAN-8 and GTIN-14 numbers, calculate the check digit, see the GS1 prefix and bulk-check a list before uploading to Google Merchant Center or Amazon.

## Articles

- [How to Auto-DM Instagram Commenters for Free with n8n (Follow-Gate Included)](https://plugstack.dev/instagram-comment-to-dm-n8n/?format=md): Auto-DM anyone who comments a keyword on Instagram, check if they follow you, then send the link. Free n8n workflow + step-by-step setup guide.
- [WooCommerce Minimum Quantity Not Working? Here’s Why](https://plugstack.dev/woocommerce-minimum-quantity-not-working/?format=md): WooCommerce minimum quantity not working on the shop page? The grid button uses a different code path than the product form. Here's the fix.
- [Tiered pricing in WooCommerce without a full B2B suite](https://plugstack.dev/tiered-pricing-without-a-b2b-suite/?format=md): You want quantity price breaks with a table on the product page. You do not want five plugins and 130 settings. Here is the middle path.
- [The variable-product quantity bugs every WooCommerce store hits](https://plugstack.dev/variable-product-quantity-bugs/?format=md): "Group of resets to 1", "variation rules ignored in the cart" — a tour of the bugs that plague variable-product quantity handling, and what correct behaviour looks like.
- [Wholesale Suite vs B2BKing vs a focused quantity plugin: what small B2B stores actually need](https://plugstack.dev/focused-quantity-plugin-vs-b2b-suites/?format=md): A practical comparison for small and mid-size B2B stores weighing a full suite against a single-purpose plugin.
- [How to set minimum order quantities customers actually understand](https://plugstack.dev/minimum-order-quantities-customers-understand/?format=md): A minimum order rule only works if the shopper knows what to do when they hit it. A short guide to messaging, defaults and placement.
- [Block cart & checkout: the quantity-rule gap nobody talks about](https://plugstack.dev/block-cart-checkout-quantity-rule-gap/?format=md): The WooCommerce block cart and checkout validate through the Store API, not the classic hooks. Plugins that never updated still "work" — until a customer uses the block cart.

## Code snippets

- [Sell a product only in multiples (quantity step) in WooCommerce](https://plugstack.dev/snippets/woocommerce-quantity-step/?format=md): Make the quantity field go up in steps, e.g. 6, 12, 18, for products sold by the case.
- [Hide prices for logged-out visitors in WooCommerce](https://plugstack.dev/snippets/woocommerce-hide-prices-for-guests/?format=md): Show a "Log in to see prices" message instead of the price and add-to-cart button for guests.
- [Set a minimum order amount in WooCommerce](https://plugstack.dev/snippets/woocommerce-minimum-order-amount/?format=md): Block checkout until the cart subtotal reaches a minimum, with a clear notice.

## AI prompts

- [Cinematic 3D Watch Story (Apple Pro-Grade Scrollytelling)](https://plugstack.dev/prompts/cinematic-3d-watch-story-apple-pro-grade-scrollytelling/?format=md): An ultra-luxurious, Apple Pro-caliber 3D scrollytelling landing page for a concept cyberpunk luxury watch featuring 5-act video frame scrubbing, interactive HUD telemetry, Command Palette search, and Web Audio synthesis.

## Services

- [WordPress website development](https://plugstack.dev/services/wordpress-website-development/?format=md): Custom WordPress websites and landing pages: fast, secure, SEO-ready and easy to update. Written scope and fixed price agreed upfront.
- [Online store development](https://plugstack.dev/services/woocommerce-store-development/?format=md): WooCommerce stores built to sell: setup, products, shipping, wholesale and tiered pricing, and checkout fixes. Fixed price agreed upfront.
- [Website redesign and migration](https://plugstack.dev/services/website-design-and-redesign/?format=md): Redesign or migrate your WordPress site without losing rankings: new layout, full migration, redirects and a before-and-after speed report.
- [Speed and SEO optimisation](https://plugstack.dev/services/speed-and-seo-audit/?format=md): Core Web Vitals, indexing, structured data and AI crawler access checked, with a prioritised fix plan to make your site faster and easier to find.
- [Custom plugin and feature development](https://plugstack.dev/services/custom-plugin-development/?format=md): Custom WordPress features and integrations built as clean, documented plugins, tested with your theme and existing plugins.
- [Website care and maintenance](https://plugstack.dev/services/website-care-plan/?format=md): WordPress updates tested on staging, daily backups, uptime and security monitoring, and monthly small changes for your site.

## Optional

- [Full text of every page](https://plugstack.dev/llms-full.txt)
- [XML sitemap](https://plugstack.dev/wp-sitemap.xml)