Comparisons
Built for Shopify
5 (2610+ reviews)
What kind of bundle strategy are you building for?
Kaching is strong for quantity breaks and discount offers. Fast Bundle gives you more bundle formats, including Mix & Match, BOGO, add-ons, fixed bundles, and FBT.
Kaching encourages customers to buy more through pricing. Fast Bundle helps shape the full bundle journey, from product selection to upsell and checkout.
Kaching is useful for testing discount offers quickly. Fast Bundle is better when you need flexible bundle logic that can grow with your store.
| Capability | Fast Bundle | Kaching Bundles |
|---|---|---|
| Shopify App Store rating | 5.0 | 5.0 |
| Review count | 2.6+ | 4K+ |
| Built for Shopify | ✓ Yes | ✓ Yes |
| Primary focus | Broader bundle architecture | Quantity breaks & offer testing |
| Lowest paid plan | From $19/mo | From $15/mo |
| Pricing model | Bundle sales tiers + Enterprise options | Revenue-based pricing + Flex Billing |
| Free trial | ✓ 7-day free trial | ✓ 7-day free trial |
| Support style | Problem-solving & implementation-focused | Live chat support |
| Mix & Match bundles | ✓ Yes | ✓ Yes |
| Bundle Builder | ✓ Dedicated Bundle Builder | ✕ No |
| BOGO / Buy X Get Y | ✓ Yes | ✓ Yes |
| Volume discounts / quantity breaks | ✓ Yes | ✓ Yes |
| Upsell & cross-sell | ✓ Built in | ✓ Built in |
| AI capabilities | ✓ AI FBT + AI images + AI bulk edits | ✓ AI recommendations |
| A/B testing | ✕ No | ✓ Built-in split testing |
| Bundle as Product | ✓ Yes | ✕ No |
| Shopify POS support | ✓ POS workflows documented | ✓ POS supported |
| Languages | ✓ 10 languages | ✓ Multiple languages |
| Best fit | Merchants who need flexible bundling, AI merchandising, and scalable upsell systems | Merchants who want fast-launch offers, quantity breaks, and built-in testing |
Choose Kaching Bundles if your main priority is launching quantity breaks, BOGO offers, and visually customized promotions with built-in A/B testing.
Choose Fast Bundle if your goal is to increase AOV with broader bundle types, Mix & Match experiences, AI merchandising, and flexible upsell flows.
Create bundle experiences designed to grow cart value, not just encourage higher quantities.
Mix & Match, Bundle Builder, BOGO, add-ons, fixed bundles, and AI-powered FBT in one platform.
Bundle layouts and upsell flows optimized to fit naturally into modern Shopify storefronts.
Start simple, then expand into more advanced bundle and upsell strategies as your store grows.
Kaching Bundles is optimized for fast-launch quantity offers and discount campaigns, while Fast Bundle is built for merchants who need broader bundle flexibility as their store grows. Fast Bundle supports Mix & Match bundles, Bundle Builder flows, AI-powered FBT, BOGO offers, add-ons, and advanced upsell experiences in one platform.
Many growing stores eventually need more than quantity breaks. Fast Bundle helps merchants expand into personalized bundles, upsells, cross-sells, and conversion-focused purchase flows without switching between multiple apps.
Yes. Fast Bundle allows merchants to run multiple bundle types simultaneously, including Mix & Match bundles, fixed bundles, BOGO offers, volume discounts, add-ons, and AI-powered recommendations across different products and campaigns.
Fast Bundle is designed for merchants who want to scale their bundle strategy over time. Stores can start with simple offers and later expand into more advanced merchandising, upsell, and AOV optimization workflows without rebuilding their bundle infrastructure.
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