The best Shopify upsell apps in 2026: six apps, plus Rebuy vs AfterSell vs Zipify
Shopify Bundles, Frequently Bought Together, Upcart, Rebuy, AfterSell and Zipify OCU. Where each offer appears, what each bill counts and Shopify's post-purchase rules.
The best upsell is the thing the shopper would come back for anyway. The case for the phone. The refill for the bottle. Where you show it matters less than what you offer. What the app bills you for matters more than either. Here are six apps, and three bills compared.
In this article
Where an offer can appear
Four places to make an offer
- 01
Product page
Bundles and frequently bought together.
- 02
Cart
A drawer with add-ons and a shipping bar.
- 03
Checkout
Offers before payment. Custom checkout needs Plus.
- 04
After payment
One-click offers before the thank-you page.
Shopify's post-purchase rules
Shopify sets the rules for offers after payment. Only one post-purchase app can run per store. Offers show on Online Store orders of $0.50 or more. Shoppers paying by wallet, instalments or gift card do not see them. A shopper can accept up to three offers per checkout. App Store apps work on every plan except Starter.
| App | Where it offers | What the bill counts | Free plan or trial |
|---|---|---|---|
| Shopify Bundles | Product page | Nothing: free | Free |
| Frequently Bought Together | Product page | Monthly orders | Free for 3 manual bundles |
| Upcart | Cart drawer | Monthly store orders | 14-day trial |
| Rebuy | Cart, checkout, after payment | Monthly orders, per package | 14-day trial |
| AfterSell | After payment; checkout on Plus | All store orders, last 30 days | 30-day trial |
| Zipify OCU | Before and after payment | Upsell revenue | 30-day trial |
Shopify Bundles: free fixed bundles
Shopify's own Bundles app is free on all plans. It builds fixed bundles and multipacks in your admin. A bundle holds up to 30 components and 100 variants. It does not do mix-and-match, and bundles cannot contain bundles.
Frequently Bought Together: on the product page
Frequently Bought Together by Code Black Belt shows bundles beside the product. The free plan allows three manual bundles. Paid plans price by monthly orders, from $14.99 to $39.99 a month. Its pages give different trial lengths.
Upcart: the cart drawer
Upcart replaces the cart with a drawer holding upsells and a free shipping bar. Plans price by monthly store orders. The listing shows $29.99 for up to 200 orders and $34.99 for up to 500. Several apps use the Upcart name, so check the developer.
Rebuy: personalised offers across the funnel
Rebuy sells four packages: cart, search, checkout and post-purchase, and flows with A/B tests. Each package prices by your monthly orders, from $25 a month. Bundling packages cuts the price by up to 30%. Rebuy bills on a 30-day cycle from your last 30 days. It is the broadest tool here, with the most to set up.
AfterSell: after payment
AfterSell focuses on one-click offers after payment. Its bill counts every store order in the last 30 days, upsold or not. The docs show $34.99 for up to 500 orders, rising to $149.99 for 4,000. Above that it adds $0.03 an order, capped at $799.99. Checkout customisation costs $99 more and needs Shopify Plus.
Zipify OCU: billed by upsell revenue
Zipify OneClickUpsell runs offers before and after payment. Its bill follows the upsell revenue it brings in. Shipping and tax count in that revenue. The price starts under $10 a month and is capped at $999. Zipify's pages show different tier breaks, so check the help article.
Rebuy vs AfterSell vs Zipify: three meters
Your orders, per package
Pay for the packages you use, sized to your order count.
Wins at
- Pick only the packages you need
- Bundle discounts up to 30%
Struggles with
- More setup than the others
- Bill grows with all orders
All store orders
Every order counts, upsold or not.
Wins at
- Predictable from your order count
- A published cap
Struggles with
- You pay for orders with no upsell
- Checkout tools need Plus
Upsell revenue only
The bill rises only when offers sell.
Wins at
- Low cost while you test
- Capped at $999
Struggles with
- Tax and shipping count as revenue
- Tier breaks differ across its pages
From each vendor's billing docs, checked 12 October 2026.
So a store testing its first offer pays least on Zipify. A store with steady order volume can forecast AfterSell. A store wanting cart, checkout and search together looks at Rebuy.
Which one to try
Start here
Where should your first offer appear?
- On the product page
Shopify Bundles
Free fixed bundles.
- Want suggested pairings: Frequently Bought Together
- In the cart
Upcart
A drawer with add-ons.
- Want personalised picks: Rebuy cart package
- After payment
Zipify OCU or AfterSell
One app per store.
- Still testing offers: Zipify bills on upsell revenue
Where Idukki fits (ours)
We make Idukki. It runs no cart or post-purchase offers. Its galleries tag every product in a customer photo. A shopper can add the whole look from one post. For more order value tools, read the best apps to increase order value.
Questions store owners ask
Can I run two post-purchase upsell apps?
No. Shopify lets one app handle post-purchase offers per store.
Do I need Shopify Plus for upsells?
Not for post-purchase offers from App Store apps. Custom checkout offers before payment need Plus.
How does AfterSell bill?
By all your store orders in the last 30 days, from $34.99 for up to 500.
How does Zipify OCU bill?
By the upsell revenue it brings in, including tax and shipping, capped at $999 a month.
Sources
- 1shopify.dev: about product offers · Plans and rules.
- 2shopify.dev: UX for post-purchase offers · Order eligibility.
- 3Shopify Help: Shopify Bundles · Free app.
- 4Shopify Help: bundles eligibility · Limits.
- 5Frequently Bought Together on the Shopify App Store · Plans.
- 6Upcart on the Shopify App Store · Plans.
- 7Rebuy pricing · Packages.
- 8Rebuy: plans and packages · Features.
- 9AfterSell: billing and pricing · Order tiers and cap.
- 10Zipify: plan and billing (OCU) · Revenue-based tiers.
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