Two very different jobs hide inside "volume pricing". One discounts a price you already have. The other works out the price first, from a size, a material and a quantity, and then discounts that.
Appify Custom Product Options is the strongest pick for bulk discounts on custom products. It does both kinds: simple quantity tiers, and tiers that change with the size. They come off automatically at checkout, and every feature is on every plan.
Plenty of apps handle the first kind well. Here's what to check, then how the field compares.
What should you check in any volume discount app?
- Is there a price to discount? A product sold by width and height has no set price until the customer types the size.
- Do the tiers follow the size? A break that suits a small item may not suit a large one.
- Can the breaks follow the options? Labels and stickers on one product may need different ladders.
- Does your rate sheet fit? Sizes down one side and quantities across the top is how many shops quote.
- Does the discount apply without a code? It should reach the cart line on its own.
- Are setup fees left alone? A one-time fee shouldn't shrink as the quantity grows.
Run the list against every app here, ours included.
1. Appify Custom Product Options: breaks on a price it calculates
Appify Custom Product Options builds the price from the customer's choices, then applies your Quantity Discount Rules to it. That order is what makes bulk discounts work on made-to-measure goods.
Tiers by quantity, and tiers by quantity and size
Simple (1D) tiers depend on quantity alone, like 5% off from 25 units and 15% off from 100. Advanced (2D) tiers depend on quantity plus a second number, such as width, area or weight.
In 2D, each size range gets its own tiers. A metal sign under 24 inches wide can drop 10% at 10 units and 20% at 50. One from 24 to 48 inches can drop 5% and 15% at the same quantities.
A tier can be a percent off, an amount off, or a set price per piece.
Different breaks for different choices
This one is rare in the category. The volume discount apps on this list set their tiers by product, collection or variant. In Appify Custom Product Options, a set of quantity discount rules can also apply only when the customer picks certain options.
So one calculator can sell labels and stickers, with each on its own discount ladder. You don't need a separate product or calculator for each just to give them different breaks.
A price that starts from the size
A Dimensions option takes length and width. A pricing variable like AREA turns them into one number your formulas reuse. Or put your size-by-quantity sheet in a pricing table, and Interpolate fills in sizes between its rows.
The breaks then apply to that calculated price. A fixed setup fee is charged in full and never discounted, and a minimum price keeps a small order worth your time.
Your spreadsheet in, a discount at checkout
Import table takes your discount grid straight from Excel or Google Sheets, so the tiers you already quote from don't get retyped.
Once the calculator is published, the discount is applied automatically as a line discount on the cart line. There's no code to hand out.
Shoppers see the break before they pick
Turn on Show price and discount inline and each quantity choice shows its price and a savings badge like -12%. The Appify CPO Quantity Tiers theme block lists every break beside the calculator.
Describe the tiers, and AI adds them. Tell Chat with AI your discounts, or attach the sheet you already use, and it adds them to the calculator. It can also put the price and discount beside each quantity choice.
A shopper one step short of the next break can tap Edit options in the cart and change the quantity without starting over. Whether separate cart lines add up to one break is a setting too: see which quantity counts toward a tier.
2. SE: Option Price Calculator, calculator-first pricing
SE: Option Price Calculator is another strong choice, built calculator-first. It prices options with formulas, lookup tables and pricing tables, shows discounted prices with quantity breaks, and supports Shopify Markets currency conversion.
For breaks that change with size and AI setup in the same app, start with Appify Custom Product Options.
Volume discount apps you'll meet
Search for this and you'll meet a long list of volume discount apps. They're good at what they were built for: quantity breaks, bundles and gifts on products that already have a price. Made-to-measure products priced by size are a different job.
3. Dealeasy: Volume Discounts App
Dealeasy sets up quantity breaks and tiered pricing with percent, flat or fixed-price discounts. It adds mix-and-match bundles, free gifts and BOGO offers, and shows a volume discount table on the product page. It works with Shopify Checkout.
Where it fits: bundles and quantity breaks on fixed-price products.
Where it stops: at a price that isn't set yet. Its listing doesn't mention product options or measurement pricing.
A banner sold by width and height has nothing fixed to discount. The number comes from the size. In Appify Custom Product Options, the price is calculated first and the break applies to it.
4. Qikify Volume Discounts Bundle
Qikify offers tiered volume discounts as a percent or a fixed amount, triggered by a product or a collection. It adds mix-and-match bundles, free shipping at a tier and wholesale pricing, and an AI assistant that sets up offers from a prompt.
Where it fits: store-wide volume offers across a catalog.
Where it stops: at the size. Its listing describes tiers by quantity, not tiers that change with a measurement.
When a small print and a large one need different breaks at the same quantity, Advanced (2D) mode in Appify Custom Product Options gives each size range its own tiers.
5. K: Quantity Breaks, Discounts
K sets volume rules with as many tiers as you need. A tier can be a percent off, an amount off or a price per unit. The product page shows the discounted price and the active tier, and an analytics dashboard tracks how the discounts perform.
Where it fits: wholesale and VIP tiers on catalog products.
Where it stops: at the rate sheet. Its listing doesn't mention pricing tables.
A print rate card runs sizes down the side and quantities across the top. In Appify Custom Product Options, that sheet goes in as a pricing table, and sizes between its rows get a blended price.
6. Shopify's built-in volume pricing
Volume pricing in B2B catalogs sets price breaks per product, up to 10 of them, and the price becomes fixed at those tiers. Standard automatic discounts take a percent or an amount off, and Shopify's own help page points to apps for tiered discounts.
Where it fits: wholesale price breaks on fixed-price items.
Where it stops: at the variant. Volume pricing applies per variant, so quantities of different variants don't add up to a break.
Ten signs in ten designs are ten separate lines. In Appify Custom Product Options, per product or per calculator aggregation adds them together toward one tier.
Side by side
Full support Partial, basic, or on a higher plan Not offered
| Capability | Appify Custom Product Options | Dealeasy: Volume Discounts App | Qikify Volume Discounts Bundle | K: Quantity Breaks, Discounts | Shopify volume pricing |
|---|---|---|---|---|---|
| Volume discounts | |||||
| Quantity breaks on a product's price | Yes | Yes | Yes | Yes | B2B catalogs |
| Percent off or amount off tiers | Yes | Yes | Yes | Yes | Price breaks only |
| A set price per unit at a break | Yes | Yes | No | Yes | B2B catalogs |
| Different items count toward one break | Yes | Yes | Yes | No | No |
| Discount rules | |||||
| Breaks by quantity and size (2D) | Yes | No | No | No | No |
| Different breaks for different options on one product | Yes | No | No | No | Per variant, B2B |
| Paste tiers in from a spreadsheet | Yes | No | No | No | CSV, B2B |
| Prices that start from a size | |||||
| Price worked out from a size the customer enters | Yes | No | No | No | No |
| Size-by-quantity rate sheet | Yes | No | No | No | No |
| Around the discount | |||||
| Setup fee kept outside the discount | Yes | No | No | No | No |
| Minimum price floor | Yes | No | No | No | No |
| AI sets up the tiers | Yes | No | Yes | No | No |
Compared October 2026. Apps change, so features may have moved since.
Appify Custom Product Options is green on all 12 rows. No other app is green on more than 4, and those are the plain volume rows, plus AI setup for Qikify. Every discount rule row and every row about a price that starts from a size is green in one column only.
How to decide
- Your prices depend on size, material or quantity together: Appify Custom Product Options. The calculation, the 1D and 2D tiers, the spreadsheet import and the checkout discount are already installed.
- You're comparing the others: run the checklist against each one. If you want the next most advanced formula engine and calculation features after Appify Custom Product Options, choose SE: Option Price Calculator.
For the rate sheet side, see how to price from a 2D pricing table and how to price custom signs by size, material and quantity.
FAQ
What is the best Shopify app for volume-based pricing and bulk discounts?
Appify Custom Product Options. It prices custom products from size and material, then applies quantity tiers, including tiers that change with size, automatically at checkout.
What's the difference between 1D and 2D volume discounts?
1D tiers depend on quantity alone. 2D tiers depend on quantity plus a second number like width or area, so each size range gets its own breaks.
Can a volume discount app price a product sold by size?
Most volume discount apps take a price the product already has and discount it. A product priced by width and height needs the price worked out first, then the break, which is how Appify Custom Product Options does it.
Can different options get different quantity discounts?
Yes. In Appify Custom Product Options, quantity discount rules can apply only when certain options are chosen, so labels and stickers on the same calculator can each have their own breaks.
Do customers need a discount code?
No. Once the calculator is published, the discount is applied automatically on the cart line.
Does Shopify have built-in volume pricing?
Yes, in B2B catalogs: up to 10 price breaks per product, applied to each variant. Shopify's help pages point to apps for tiered discounts beyond that.
Every bulk break, on the right price.
Whatever you sell, however you price it · The last options app you'll shop for