ZS Bundles vs Simple Bundles & Kits: which Shopify bundle app fits?
Simple Bundles & Kits is built around inventory and fulfillment: SKU breakdown, 3PL and warehouse sync. ZS Bundles is built around the offer on your product page. Here is how the two compare.
Plans, prices, ratings and features below are taken from each app's Shopify App Store listing, checked 22 October 2026. Apps change their plans, so check the listing before you decide.
Quick verdict
These two apps solve different problems. Simple Bundles & Kits is a strong fit when your warehouse, 3PL or ERP needs every bundle broken down into its parts. ZS Bundles is a strong fit when you want shoppers to see an offer on the product page (quantity breaks, buy X get Y, a mix and match box) and pay a low, predictable price for it.
Pricing
| Simple Bundles plan | Price | What it covers |
|---|---|---|
| Free | $0 | 3 bundles and 50 monthly orders. All bundle types, SKU breakdown, analytics, build your own bundle |
| Basic | $24 / month (listed as $14 / month for stores under 100 monthly orders) | For Shopify Basic. Unlimited bundles, bulk import, dynamic pricing, review integration, POS for one location |
| Grow & Advanced | $39 / month | For Shopify Grow and Advanced. Order processing rules, POS for unlimited locations, Shopify Flow, priority support |
| Plus | $149 / month | For Shopify Plus. Dedicated processing queue, Hydrogen and headless support, 24/7 priority support |
Simple Bundles plans follow your Shopify plan. Yearly billing is also listed.
| ZS Bundles plan | Price | What it covers |
|---|---|---|
| Free | $0 | Every bundle type except progressive gifts, 1 live bundle at a time, up to 20 bundle orders a month |
| Starter | $12.99 / month | 500 bundle orders a month, unlimited live bundles, countdown timer, checkbox upsells |
| Scale | $24.99 / month | 2,000 bundle orders a month, progressive free gifts, A/B testing, custom CSS |
| Pro | $49.99 / month | Unlimited bundle orders, sticky add-to-cart bar, volume discounts across products |
Every paid ZS Bundles plan has a 14-day free trial. Plans are billed by the number of orders that contain a bundle, not by revenue.
What the price is based on
Simple Bundles charges by your Shopify plan. ZS Bundles charges by how many orders contain a bundle. A store on Shopify Grow that sells 200 bundle orders a month pays $39 on Simple Bundles and $12.99 on ZS Bundles Starter. Simple Bundles also lists $14 a month for stores under 100 monthly orders, which is close to ZS Bundles Starter.
Feature comparison
| Simple Bundles & Kits | ZS Bundles | |
|---|---|---|
| Rating | 4.9 from 807 reviews, Built for Shopify | New on the App Store |
| On the App Store since | March 2021 | Recently listed |
| Free plan limit | 3 bundles, 50 monthly orders | 1 live bundle, 20 bundle orders a month |
| Inventory | SKU breakdown, sync with 3PL, WMS and ERP | Each item is your real product, so its own stock is used |
| Shopify POS, Flow, Amazon | Listed | No |
| Quantity breaks | Listed | Yes, on the free plan |
| Mix and match boxes | Yes | Yes, on the free plan |
| Buy X get Y, free gifts | See listing | Free plan; gifts that unlock with cart value on Scale |
| Bulk order table for trade buyers | See listing | Yes, on the free plan |
| Countdown timer, checkbox upsells | See listing | Starter ($12.99) |
| Admin languages | English, French, Japanese | 9 languages |
How the offer works in ZS Bundles
ZS Bundles shows the offer on the product page in a theme-matched widget. In a mix and match box, each product the shopper picks goes into the cart as itself, then the box is shown as one line. That keeps stock correct for every flavour, size or colour. Shopify applies the price at checkout through Shopify Functions, so there is no code to leak.
Which should you pick?
- Pick Simple Bundles & Kits if your fulfillment depends on bundle SKUs being split for a 3PL, WMS or ERP, or if you sell bundles through POS or Amazon. That is what it is built for, and it has a long track record.
- Pick ZS Bundles if your aim is a bigger order on the product page: tiers, buy X get Y, boxes, gifts and trade order tables, priced by bundle orders. Our team sets up your first two bundles for free.
