We make one of the apps on this page, so read it with that in mind. Prices and features of other apps come from their Shopify App Store listings, checked on November 14, 2026. Plans change: check the listing before you decide.
Quantity breaks (“Buy 2, save 10% · Buy 3, save 20%”) are one of the simplest ways to raise your average order. Most apps that do them also do bundles and gifts, so the real differences are pricing model, extra features and maturity. We make one of these apps (Volumo).
Before you choose any of them, check your tiers pay for themselves:
At a glance
From each app’s Shopify App Store listing, checked November 14, 2026.
| App | Pricing model | Free | Paid from | Reviews | Built for Shopify |
|---|---|---|---|---|---|
| Volumo (ours) | Free during launch | All features | — | New, none yet | No |
| Bundler | Flat monthly | Volume discounts, quantity breaks, BXGY, unlimited revenue | $9.99 a month | 4.9 (2,794) | Yes |
| Pumper | By extra revenue | Up to $300 extra revenue | $9.99 a month | 4.9 (3,649) | Yes |
| Kaching Bundles | By additional revenue | 7-day trial | $14.99 a month | 5.0 (6,720) | Yes |
Volumo
Our app. Quantity breaks (up to 5 tiers), buy X get Y, spend more save more, fixed bundles and free gifts added to the cart automatically. Tier suggestions from your price and cost, cart messages (“Add 1 more to…”), a real-date countdown, an A/B test of two tier sets, and analytics with average order with and without a deal. Discounts applied by Shopify Functions.
Not for you if you need build-a-box, subscription bundles, free shipping offers or custom CSS.
Bundler
A flat-fee app whose free plan already includes volume discounts, quantity breaks, buy X get Y, product page upsells, POS and auto-applied discounts, with unlimited revenue and orders. Premium ($9.99) adds mix-and-match and more; Executive ($19.99) adds analytics.
Not for you if you want analytics without paying, or prefer its competitors’ product page designs.
Pumper Bundles Quantity Breaks
Quantity breaks, bundles, free gifts and BOGO, with discounts per unit, by percentage or flat. Free up to $300 of extra revenue, then $9.99, $29.99 and $49.99 a month by extra revenue.
Not for you if your offers will bring a few thousand dollars a month and you’d rather pay a flat price.
Kaching Bundles
The widest feature set here: many bundle types (mix and match, build a box, subscription boxes, wholesale), quantity breaks, BOGO, free shipping and gifts, upsells, A/B testing, funnel analytics and custom CSS/HTML. Plans by additional revenue: $14.99 (up to $1,000), $29.99 (up to $5,000), $59.99 (up to $10,000).
Not for you if you only need simple tiers and don’t want a plan that climbs with revenue.
How to choose
- Simple tiers, maybe a gift, no monthly fee: Volumo or Bundler’s free plan.
- Many bundle types and heavy customization: Kaching.
- Small store, happy to pay as offers grow: Pumper’s free tier, then its revenue plans.
- Whatever you pick: run it with real tiers for two weeks and compare average order and profit per order with the two weeks before.
Questions people ask
Can I do volume discounts without an app?
You can create automatic discounts with a minimum quantity, one per tier, and Shopify applies the best one. What you don't get without an app is the tier table on the product page and progress messages in the cart.
Why do some apps charge by revenue?
They price by the extra revenue they attribute to their offers. It can be cheap for small stores and grows as offers succeed. Check how the app measures that revenue.