The best upsell app for Shopify depends on where you want the offer to appear and how you want to be billed. OC: Volume Discount Bundle App is a low-cost way to add bundle, volume-discount and post-purchase offers; Upsell.com (ex ReConvert) and Selleasy cover every placement from product page to thank-you page; Zipify OCU and UpsellPlus suit stores that want revenue-based pricing or in-checkout offers on Shopify Plus.
Upsell apps aim to raise average order value from traffic you already pay for. Below, each upsell app is compared on rating, review count, pricing model and placement, using Shopify App Store data checked, plus Shopify’s own plan rules and the complaints merchants leave in low-star reviews.
Quick answer
- Bundles, volume discounts and post-purchase offers on a flat budget: OC: Volume Discount Bundle App. Free for 1 campaign, Plus is $7.99/month.
- Full upsell funnel across product page, cart, post-purchase and thank-you page: Upsell.com (ex ReConvert) or Selleasy.
- Offers inside the checkout steps on Shopify Plus, or billing tied to upsell revenue: UpsellPlus or Zipify OCU.
Shopify upsell apps compared
| App | Rating | Price label | Billing model | Best for |
|---|---|---|---|---|
| OC: Volume Discount Bundle App | 5.0 | Free (1 campaign); Plus $7.99/mo | Flat monthly fee | Bundles and quantity breaks plus post-purchase offers |
| Upsell.com (ex ReConvert) | 4.8 | Free up to 50 orders; $9.99–$39.99/mo | Tiers by order volume | Thank-you page builder and full funnels |
| Upsell & Cross Sell — Selleasy | 4.9 | Free up to 50 orders/mo; $9–$29/mo | Tiers by order volume | Frequently bought together and add-ons |
| One Click Upsell ‑ Zipify OCU | 4.6 | Starter $9.95/mo and up | Based on upsell revenue | High-volume one-click post-purchase funnels |
| UpsellPlus Checkout Upsell | 5.0 | Free (1 offer); $49–$199/mo | Tiers capped by upsell revenue | Shopify Plus stores that want in-checkout offers |
Data checked October 15, 2026 on each app’s Shopify App Store listing. Review counts change daily.
Which upsells your Shopify plan allows
Before you compare features, check what your plan can run. According to Shopify’s checkout apps documentation, apps that add content to the information, shipping and payment steps of checkout work only on Shopify Plus. Post-purchase pages and apps on the Thank you and Order status pages work on Basic and higher plans.
Two more rules shape your choice. You can run only one post-purchase app at a time, picked under Settings > Checkout > Post-purchase page, and the checkout editor allows up to three apps per area. And if you only need “you may also like” products, Shopify’s Search & Discovery app lets you set up to 10 complementary products per product, shown on the product page when your theme supports the block. It adds no discount, so it is a starting point rather than a full upsell tool.
The 5 apps in detail
1. OC: Volume Discount Bundle App
This app was built for bundles first: fixed bundles, BOGO, Buy X Get Y, quantity breaks and volume discounts by product or collection (a mix-and-match builder is still in development). It also runs one-click post-purchase offers on Shopify’s post-purchase page, where accepting adds the item to the order just paid, plus a Thank you page block called checkout-ui, on both the Free and Plus plans. You build these offers in the app’s More Upsell menu and can add a second upsell or a downsell. A/B testing is on the Plus plan only, and templates match your theme. Pricing is flat: one free campaign, or unlimited campaigns for $7.99/month with a 7-day trial, so the bill does not rise with your order count.
Best for: stores that want to raise order value with bundles and quantity breaks, then add a simple post-purchase offer without a per-order fee. View it on the Shopify App Store.
2. Upsell.com (ex ReConvert)
The app many merchants know as ReConvert now lists as “Upsell.com (ex ReConvert).” It has the largest review base here, launched in 2018, and covers product page, cart, post-purchase and a thank-you page builder, with in-checkout offers on Shopify Plus. Its listing also highlights AI recommendations, A/B tests and a no-code funnel builder. Plans move with order volume: free up to 50 orders or $50 of upsell revenue, then $9.99, $19.99 and $39.99 per month.
What low-star reviewers raise: on the first page of 1-star reviews on its listing, 7 of 10 are about billing, such as charges right after a trial, moves to a higher tier, and point-of-sale orders counting toward the tier. A few mention third-party offers appearing on checkout pages. Best for: stores that want one tool for every placement and will watch their order tier.
3. Upsell & Cross Sell — Selleasy
Selleasy carries a 4.9 rating on more than 2,700 reviews and the Built for Shopify badge. It focuses on frequently bought together bundles, product add-ons and cart offers, plus one-click post-purchase upsells. It is free up to 50 orders a month, then $9, $19 or $29 by order tier, with a 30-day trial.
What low-star reviewers raise: billing based on all store orders rather than orders the app influenced, and widgets that stopped showing or bundle prices that did not update when a variant changed. Best for: small and mid-size stores that want proven cart and product-page cross-sells. Read our Selleasy review for setup details.
4. One Click Upsell ‑ Zipify OCU
Zipify OCU is built around one-click post-purchase funnels, with dynamic AI upsells, A/B testing and targeting by product, cart value or customer tag. In-checkout upsells need Shopify Plus. Its pricing follows upsell revenue: Starter is $9.95/month, and higher tiers move with what the app sells. It rates 4.6 on 569 reviews.
Trade-off: revenue-based billing means you pay more when offers work, which suits stores with steady upsell sales but makes costs harder to predict. Best for: established brands running paid traffic. See our Zipify OCU review.
5. UpsellPlus Checkout Upsell
UpsellPlus rates 5.0 on 145 reviews and is built for checkout. Its listing shows offers in the cart drawer, checkout, post-purchase, thank-you, order status and account pages, with checkout offers marked as Shopify Plus only. A free plan allows 1 offer up to $500 of upsell revenue; paid plans run from $49 to $199 per month.
Trade-off: its paid plans start at $49 a month, higher than the other apps’ first paid tiers. Best for: Plus stores that want to test offers inside the checkout steps.
What happened to AfterSell?
Several upsell roundups still recommend AfterSell. As of October 15, 2026, its listing says it is not currently available on the Shopify App Store, so you cannot install it today. If you used it, plan a move to another post-purchase app. Other names you will see in roundups, such as Essential Upsell, BOGOS and Rebuy, were not compared here.
How to choose an upsell app
- Match placement to your plan. Non-Plus stores should compare product page, cart, post-purchase and thank-you page features, not in-checkout widgets.
- Check the billing model. Flat fee (OC), order-volume tiers (Upsell.com, Selleasy) or upsell revenue (Zipify OCU). Ask whether POS orders count.
- Avoid post-purchase conflicts. Only one app can own the post-purchase page, so pick one before installing a second.
- Look for A/B testing and clear analytics. Use the app’s A/B test if it has one (OC Plus, Upsell.com, Zipify OCU and UpsellPlus list it), or compare average order value for a few weeks with the offer on and off, rather than relying on the app’s own revenue counter.
- Test on a duplicate theme. Preview widgets on a copy of your theme, check page speed and styling, and confirm no other app already adds the same widget.
- Look at your offer type. If most of your lift will come from multi-buy discounts, a bundle app may do more than a funnel builder.
| Your store | Start with | Why |
|---|---|---|
| New store, under 50 orders a month | OC (free campaign), Upsell.com or Selleasy free tiers, or Search & Discovery | No cost while you test offers |
| Growing store selling multi-packs or consumables | OC: Volume Discount Bundle App | Quantity breaks plus a post-purchase offer at a flat fee |
| Store that wants every placement in one tool | Upsell.com or Selleasy | Product, cart, post-purchase and thank-you offers |
| Shopify Plus store | UpsellPlus, Zipify OCU or Upsell.com | In-checkout offers are supported on Plus |
Data checked October 15, 2026 against app listings and Shopify Help Center.
For more ways to lift order size beyond upsells, see our guide to increasing average order value on Shopify and our walkthrough of Shopify volume discounts.
FAQ
Can I add upsells to Shopify checkout without Plus?
Not inside the information, shipping or payment steps. On Basic and higher you can use the post-purchase page and the Thank you and Order status pages, plus product page and cart offers.
Can I run two post-purchase upsell apps at once?
No. Shopify lets one app provide the post-purchase page at a time. You choose it in Settings > Checkout.
Can I upsell without a third-party app?
Yes, in a limited form. The Search & Discovery app lets you set complementary products that show on the product page with a compatible theme. It does not add discounts or post-purchase offers.
What do merchants complain about most with upsell apps?
On the first page of 1-star reviews for Upsell.com and Selleasy, billing is the most common theme: charges tied to total store orders, tier changes and trial endings. Widgets that vanish or break come next.
Is OC: Volume Discount Bundle App a full upsell app?
It covers bundles, volume discounts and post-purchase and thank-you page upsells. Its listing does not mention AI recommendations or offers inside the checkout steps, so stores that need those should look at the other apps above.
Try OC: Volume Discount Bundle App
If bundles and quantity breaks fit your products, start with the free campaign and add a post-purchase offer once you see results. Install OC: Volume Discount Bundle App.
