The best Shopify upsell apps in 2026, compared
Nine Shopify upsell apps compared by where they upsell, price as listed, free plan and Built for Shopify status, with quick picks for each kind of store.
By Zegsu team11 min read
Disclosure: Zegsu makes one of the apps on this list, Bundles & Cart Drawer.
The best Shopify upsell app depends on where you want the offer to appear. Here are our quick picks by need:
- One-click post-purchase upsells with A/B tests: One Click Upsell ‑ Zipify OCU. It has been listed since 2020 and covers every placement.
- Post-purchase upsells on a small budget: Kaching Post Purchase Upsell, from $4.99 a month.
- Product page cross-sells with a big review base: Essential Upsell & Cross Sell (2,435 reviews, free up to $100 of extra revenue).
- Cart drawer upsells: Kaching CartDrawer Cart Upsell if you want the most reviews, Amp if you want a flat price, Rapid Cart if you want free.
- Frequently bought together widgets: Frequently Bought Together CBB.
- One free app for every surface: Zegsu: Bundles & Cart Drawer, if you're fine with an app that has only 3 reviews and no Built for Shopify badge yet.
The apps at a glance
| App | Rating (reviews) | Price as listed | Free plan? | Built for Shopify | Where it upsells |
|---|---|---|---|---|---|
| One Click Upsell ‑ Zipify OCU | 4.6 (569) | $9.95/mo up to $200 upsell revenue, $25–$99 up to $2,500, from $149 above that | Development stores only | Yes | Product page, cart drawer, checkout (Plus), post-purchase, thank-you |
| Kaching Post Purchase Upsell | 5.0 (400) | $4.99 (99 orders/mo), $7.99 (199), $19.99 (499) | Development stores only | Yes | Post-purchase, thank-you, checkout |
| Essential Upsell & Cross Sell | 5.0 (2,435) | Free up to $100 extra revenue, then $9.99, $19.99, $39.99 | Yes | Yes | Product page, cart (from $19.99), post-purchase |
| Kaching CartDrawer Cart Upsell | 5.0 (1,515) | $9.99 (99 orders/mo), $14.99 (199), $24.99 (499) | Development stores only | Yes | Cart drawer |
| iCart Cart Drawer Cart Upsell | 4.7 (452) | First 100 orders free, then $9 (0–100 orders), $19 (101–200), $29 (201–500) | First 100 orders | No | Cart drawer, cart popup, cart page |
| Rapid Cart Drawer Cart Upsell | 5.0 (78) | Free | Yes | Yes | Cart drawer |
| Amp Slide Cart Upsell Drawer | 5.0 (775) | Free cart, Growth $29.99, Pro $49.99 (flat) | Yes, without upsells | Yes | Cart drawer |
| Frequently Bought Together CBB | 4.9 (1,211) | Free (3 bundles), $9.99 (50 orders/mo), $24.99 (500), $39.99 (500+) | Yes | Yes | Product page, cart page |
| Zegsu: Bundles & Cart Drawer | 4.7 (3) | Free | Yes, all features | No | Product page, cart drawer, checkout (Plus), post-purchase, thank-you |
Prices and ratings as listed on the Shopify App Store on 17 October 2026.
Two well-known names are missing. ReConvert's listing now says the app is "not currently available on the Shopify App Store", and AfterSell is no longer on the App Store either. If a guide you're reading still recommends them, check the listing before you plan around them.
One Click Upsell ‑ Zipify OCU
Zipify OCU puts every upsell placement in one app: a product page widget, pre-purchase offers, a slide cart, checkout upsells on Shopify Plus, one-click post-purchase offers and thank-you page offers. It has AI-picked offers, built-in A/B testing and targeting by product, cart value and customer tag.
It suits stores that run paid ads and want to squeeze more from each order after the customer has paid. It is also one of the few apps here that is a Shopify Plus Partner, which matters if checkout upsells are your main goal.
Pricing: free on development stores, $9.95 a month while you earn up to $200 a month in upsell revenue, $25 to $99 between $200 and $2,500, then from $149 with a stated cap of $999. There's a 30-day free trial.
Limitation: you pay more as upsell revenue grows, so a successful setup gets more expensive. There is no free plan for a live store.
Kaching Post Purchase Upsell
This app does one job: one-click offers shown after the customer pays, with upsell and downsell funnels. The shopper doesn't re-enter card details. You can target offers by order value, UTM tags and other triggers, and style them to match your brand. Its listing also tags checkout and thank-you page upsells.
It suits stores that want to try post-purchase offers cheaply and keep the rest of their stack as it is. It is from the same maker as Kaching's bundle and cart drawer apps, so the pieces fit together if you already use those.
Pricing: free on development stores, $4.99 a month up to 99 orders, $7.99 up to 199, $19.99 up to 499. 14-day free trial.
Limitation: pricing is tied to your order count, not to what the upsells earn, and it covers one surface. You'll need other apps for product page and cart offers.
Essential Upsell & Cross Sell
Essential shows "frequently bought together", related products and add-ons on the product page and in the cart drawer, plus post-purchase offers. It can add automatic discounts to upsell products and supports BOGO bundles on the product page. It has the most reviews of any app on this list, with 2,435, and the listing names 20 supported languages.
It suits stores that want cross-sells on the product page first, with room to add cart and post-purchase offers later. For the difference between the two kinds of offer, see upsell vs cross-sell.
Pricing: free up to $100 of additional revenue, then $9.99 (up to $500), $19.99 (up to $1,000) and $39.99 (unlimited). 14-day free trial.
Limitation: cart page offers start on the $19.99 plan, and the free plan stops at $100 of extra revenue, so most growing stores will pay.
Kaching CartDrawer Cart Upsell
Kaching CartDrawer replaces your theme's cart with a slide cart. It adds an upsell slider with frequently bought together products, toggles for gift wrap or shipping protection, a free shipping and free gift bar, a countdown timer and payment icons. The listing names seven supported languages.
It suits stores that already use Kaching Bundles and want a matching cart, or anyone who wants a cart drawer with a long review history (1,515 reviews).
Pricing: free on development stores, $9.99 a month up to 99 orders, $14.99 up to 199, $24.99 up to 499. 14-day free trial.
Limitation: it only works in the cart, and the price rises with order volume. The listing shows plans up to 499 orders a month and doesn't state a price above that.
iCart Cart Drawer Cart Upsell
iCart is one of the older cart apps, launched in 2020. It can replace your cart with a slide drawer, a popup, a mini cart or a full cart page. It adds AI cart recommendations, product bundles, volume discounts, BOGO, free gifts, a multi-tier free shipping progress bar and a cart timer.
It suits stores that want lots of cart layout choices and cart-level discounts in one place.
Pricing: the first 100 orders are free for the lifetime of the store. After that, $9 a month for 0–100 orders, $19 for 101–200 and $29 for 201–500. Every plan lists all features.
Limitation: it doesn't have the Built for Shopify badge, and its rating (4.7) is a little lower than the other cart apps here.
Rapid Cart Drawer Cart Upsell
Rapid Cart is a new slide-out cart, launched in June 2026. It opens on add to cart, with a cross-sell block of products you choose, add-ons like shipping protection, a countdown timer and progress, rewards and announcement bars. Cross-sell discounts apply automatically at checkout. A dashboard tracks extra revenue, conversion rate and average order value.
You can reorder sections and change colours and labels without code, and the listing names six supported languages, including French, German and Spanish.
It suits stores that want a free cart drawer with cross-sells and are happy to pick their own recommended products.
Pricing: free.
Limitation: it is only a few months old, with 78 reviews, so there's less history to judge it on than Kaching or Amp.
Amp Slide Cart Upsell Drawer
Amp is a slide cart built around design. It offers industry cart templates, a rewards progress bar, free gifts and buy X get Y, frequently bought together upsells, subscription upsells and shipping protection. Its paid plans have a flat price, which the listing says "never increases with sales".
The listing says it works across languages and Shopify Markets and offers 24/7 support.
It suits stores that care about how the cart looks and want a cost that doesn't change as they grow.
Pricing: a free plan for cart customisation, Growth at $29.99 a month and Pro at $49.99 a month. 7-day free trial.
Limitation: the free plan doesn't list upsells. Upsells and the progress bar are listed from Growth, and the buy X get Y free gift only on Pro.
Frequently Bought Together CBB
This is the oldest app here, launched in 2017. It shows "frequently bought together" bundles on product and cart pages, built by AI, by hand or with global rules, and adds them to the cart in one click. It offers four bundle discount types (percentage, fixed, free item and free shipping) and pulls in review stars from Judge.me, Loox, Yotpo and others.
It suits stores whose best upsell is "people who bought this also bought that", especially catalogues where good pairings are hard to pick by hand.
Pricing: free for up to three manual bundles, then $9.99 (up to 50 orders a month), $24.99 (up to 500) and $39.99 (500+). 14-day free trial.
Limitation: the free plan is a trial of the basics. Automatic recommendations and discounts start on the paid plans.
Zegsu: Bundles & Cart Drawer
This is our app. Bundles & Cart Drawer covers the product page (quantity breaks, BOGO, buy X get Y, mix and match, free gifts), a cart drawer with a rewards bar and cross-sells, a checkout upsell on Shopify Plus, a thank-you page offer and a one-click post-purchase upsell. It includes A/B tests, analytics and translations. Discounts run on Shopify Functions, so prices stay right in cart and checkout without discount codes.
It suits stores that would rather run one app for every surface than three, and smaller stores that don't want a bill that grows with orders.
Pricing: free, with every feature and no order or revenue limits.
Limitation: it has 3 reviews, the newest from 2022 and written before the rebuild, and it does not have the Built for Shopify badge. Setup help is in the help docs, and the listing is on the Shopify App Store.
How to choose a Shopify upsell app
Start with where you want offers, then check what that costs as you grow.
- Surfaces. Product page offers (quantity breaks, frequently bought together) raise the order before the cart. Cart drawer offers catch shoppers who are ready to buy. Post-purchase offers come after payment, so they can't cost you the first sale. If you want bundles and quantity breaks too, see our bundle app comparison and what a quantity break is.
- Pricing model. Apps here charge by orders (Kaching, iCart, CBB), by extra revenue (Zipify, Essential), a flat fee (Amp) or nothing (Rapid Cart, Zegsu). Order caps punish busy, low-price stores. Revenue caps rise when offers work.
- Shopify Plus. Upsells inside the checkout steps need Plus. Post-purchase and thank-you page offers work from the Basic plan up.
- Theme and speed. A cart drawer replaces your theme's cart. Check it on mobile, with your theme, before going live. The Built for Shopify badge means Shopify reviewed the app for performance, design and integration.
- How discounts are applied. Apps that use Shopify Functions apply the discount inside Shopify's own discount system, so the price in the cart matches checkout.
A simple procedure:
- Write down the one surface you want first: product page, cart, or after checkout.
- Shortlist two apps from the table that cover it.
- Work out each app's monthly price at your current order count and at double it.
- Install on a development store or during the trial, and check the offer on mobile with your theme.
- Run one offer for two to four weeks and compare average order value with the period before.
- Add a second surface only once the first one pays for itself.
How we picked
We started from the apps that rank in the top 10 of Shopify App Store searches for "upsell", "upsell & cross sell", "post purchase upsell", "cart upsell" and "one click upsell", plus our own competitor notes. We chose apps that merchants compare for upselling and that cover the three main kinds: post-purchase, cart drawer and product page. We fetched every listing on 17 October 2026 and took names, ratings, review counts, prices and badges from those pages as shown. Where a listing didn't state something, we left it out rather than guess. We make Zegsu: Bundles & Cart Drawer, and we held it to the same format, including its limitations.
FAQ
Do upsell apps work without Shopify Plus?
Yes, for most surfaces. Shopify says apps that add blocks to the information, shipping and payment steps of checkout need Shopify Plus. Post-purchase, thank-you page, product page and cart upsells work on the Basic plan and up.
Can I use two post-purchase upsell apps at once?
No. Shopify's help centre says you can use only one checkout app to add post-purchase features at a time. Pick one.
What is a one-click upsell?
An offer shown after payment that the shopper can accept without entering card details again. On Shopify it runs as a post-purchase checkout extension.
Is there a free Shopify upsell app?
Yes. In this list, Rapid Cart (cart drawer) and Zegsu: Bundles & Cart Drawer (all surfaces) are free. Essential, iCart, Amp and Frequently Bought Together CBB have free plans with limits.
Should the upsell discount use Shopify Functions?
It helps. Shopify Functions let an app add its own discount logic to Shopify's backend, so the price stays the same from cart to checkout without codes.
Sources
Shopify App Store listings, fetched 17 October 2026:
- https://apps.shopify.com/zipify-oneclickupsell
- https://apps.shopify.com/kaching-post-purchase-upsell
- https://apps.shopify.com/essential-post-purchase-upsell
- https://apps.shopify.com/cart-upsell
- https://apps.shopify.com/icart
- https://apps.shopify.com/rapid-cart
- https://apps.shopify.com/slide-cart
- https://apps.shopify.com/frequently-bought-together
- https://apps.shopify.com/upsell-funnels
- https://apps.shopify.com/reconvert-upsell-cross-sell
- https://apps.shopify.com/aftersell
Shopify documentation:
- Checkout apps and plan requirements, Shopify Help Center
- Checkout UI extensions, shopify.dev
- Post-purchase product offers, shopify.dev
- Shopify Functions, shopify.dev
