Company overview
Kaching is a product page bundle app built around quantity breaks, BOGO, and mix-and-match. It has added a low-cost cart drawer.
Market position & usage
One of the most-reviewed bundle apps on Shopify. Popular with DTC stores that live on the product page. Moving down-funnel with Kaching Cart from $9.99/mo.
Feature comparison
Area
Rebuy
Kaching Bundles
Bundles
AI-selected components per shopper and product
Quantity breaks, BOGO, mix-and-match templates
A/B testing
Flows & A/B Testing package
Split-test discount tiers with no code
Fulfillment
Bundles split into components
No native SKU splitting
Cart
Smart Cart with rewards and recommendations
Kaching Cart, basic drawer
Head-to-head surfaces
PDP bundles
Quantity breaks
Cart drawer
Surfaces where both products show up in the same evaluation. Everything outside this list is uncontested.
Pricing
Kaching Bundles
About $14.99/mo
Kaching Cart
From $9.99/mo up to 99 orders
Rebuy packages start at $25/mo plus per-order usage. Competitor prices are from public pages and third-party reviews; confirm before quoting.
Where Rebuy wins
Rebuy advantage
Personalization at catalog scale
No manual setup per product for large catalogs.
Fulfillment accuracy
Components split cleanly for 3PLs.
One platform
Bundles, cart, and checkout offers share rules and reporting.
Where Kaching has the edge
Their advantage
PDP offer UX
Their quantity-break templates are what merchants picture when they say “bundle.”
Built-in testing
Every offer can be split-tested without a separate package.
Price
A fraction of our cost for a single job.
Objections
“Kaching converts better on our PDP.”
Ask what they’re measuring. Offer an A/B test of a Rebuy dynamic bundle against their current quantity break on their top five products.
“It’s $15 a month.”
Price the stack, not one app. Rebuy replaces cart, bundle, and upsell apps together.
What customers tell us
No direct mentions
No direct mentions in the customer feedback records. Log this competitor in the CRM closed-lost field so the next review has data.
Source material
Shopify App Store listing: Kaching Bundles
ShopSideK, Kaching vs Fast Bundle (July 2026)
TinySEO and Ecommerce Fastlane bundle roundups (May 2026)
Rebuy · Confidential sales resource