ICU• In Cart Upsell Cross Sell vs UpsellPlus Checkout Upsell
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 6, 2026.
The short answer
- ICU• In Cart Upsell Cross Sell is detected on 12× as many Shopify stores as UpsellPlus Checkout Upsell: 1,225 vs 100 as of Nov 6, 2026.
- On the Shopify App Store: ICU• In Cart Upsell Cross Sell 4.8 from 584 reviews and UpsellPlus Checkout Upsell 5.0 from 152 reviews.
- Both list a free plan. Paid plans start at $9.99/month for ICU• In Cart Upsell Cross Sell and $49/month for UpsellPlus Checkout Upsell.
- ICU• In Cart Upsell Cross Sell lists 18 features UpsellPlus Checkout Upsell’s listing doesn’t mention, including Automatic discounts, Bundles, Buy more, save more.
Head to head
Increase AOV with Upsell & Cross-sells without Popups Using AI
Grow AOV, post-purchase, BOGO, offers, funnels, gifts
- United States
- United Kingdom
- Australia
- United States
- United Kingdom
- Sweden
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Free Plan
- · "Powered by InCart Upsell" watermark
- · 1 upsell offer only
Shopify BASIC User
- · "AI autopilot" automated offers
- · A/B testing & conditional logic
- · Cart page & cart drawer upsells
- · Checkout-click popup upsell
- · Concierge onboarding & support
- · Post purchase upsell
Shopify GROW User
- · "AI autopilot" automated offers
- · A/B testing & conditional logic
- · Cart page & cart drawer upsells
- · Checkout-click popup upsell
- · Concierge onboarding & support
- · Post purchase upsell
Shopify ADVANCED
- · "AI autopilot" automated offers
- · A/B testing & conditional logic
- · Cart page & cart drawer upsells
- · Checkout-click popup upsell
- · Concierge onboarding & support
- · Post purchase upsell
Free
- · Analytics
- · Build for free. Launch with a free trial
- · Checkout Upsells (Plus only)
- · Choose from all 12 upsell types
- · Product, Cart, Post-purchase upsells
Launch
- · Cart Page, Pop-up & Drawer Upsells
- · Earn back fees with UpsellPlus Earn
- · Free Gifts
- · Multivariate A/B testing
- · Post-purchase Upsells
- · Product Page Upsells
Shopify Plus
- · AI recommendations
- · Checkout Customization
- · Checkout Upsells
- · Earn back fees with UpsellPlus Earn
- · Everything in Basic, plus:
- · Thank You Page Customizations
Scale
- · Checkout & TY page Customization
- · Checkout Upsells
- · Earn back fees with UpsellPlus Earn
- · Everything in Basic, plus:
- · Live support with 30s replies
- · Multivariate A/B Testing
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureBoost order values with In Cart Upsell & Cross-Sell app & create customized cart & post purchase upsell & cross-sell offers. Personalize shoppers experience w/ conditional logic & triggers. Perfect your upsell strategy with A/B testing on product upsell & cross-sell offers. Analyze effectiveness with an intuitive upselling dashboard.
UpsellPlus helps increase average order value with personalized upsells and cross sells across product pages, cart drawers, checkout, post purchase, thank you, order status and customer account pages. Staff can also upsell in store with offers on the Shopify POS home screen, added in one tap. Create one click post purchase offers, free gifts, subscription upgrades and checkout customizations.
- Maximize AOV with upsells & cross sells on cart page, AJAX carts & product pages
- Set triggers & rules for efficiently targeted cart upsell & cross-sell offers
- Drive extra revenue with frequently bought together & related product offers
- Fine-tune upsell cart strategies with a smart, easy to read analytics dashboard
- Customize checkout, cart and post-purchase page with upsells and customizations
- Upsell one-off purchases to subscriptions to grow your recurring revenue
- Add custom fields to checkout page for gift message, delivery date/notes
- A/B test checkout upsells to learn what works best
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  ICU• In Cart Upsell Cross Sell |  UpsellPlus Checkout Upsell |
|---|---|---|
| Detected stores | 1,225(ahead) | 100 |
| Net store change, 28 days | −15 | +15 |
| Stores added, 28 days | 20(ahead) | 17 |
| Big-brand share | 11% | Not enough data |
| Top store categories | Apparel & Accessories, Health & Beauty, Home & Garden | Apparel & Accessories, Health & Beauty, Home & Garden |
| Top store countries | United States, United Kingdom, Australia | United States, United Kingdom, Sweden |
Reviews
| Measure | ICU• In Cart Upsell Cross Sell | UpsellPlus Checkout Upsell |
|---|---|---|
| App Store rating | 4.8 ★ | 5.0 ★(ahead) |
| App Store reviews | 584(ahead) | 152 |
| New reviews, 28 days | 0 | 7(ahead) |
| Reviewers a year or more in | Not enough data | 11% |
Pricing
| Measure | ICU• In Cart Upsell Cross Sell | UpsellPlus Checkout Upsell |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $9.99/month(ahead) | $49/month |
| Longest free trial | 30 days | 14 days |
| Plans listed | 4 | 4 |
Listing
| Measure | ICU• In Cart Upsell Cross Sell | UpsellPlus Checkout Upsell |
|---|---|---|
| Shopify category rank | #179 | #21 |
| Shopify App Charts | #24 in Upsell and cross-sell | #11 in Checkout - Other |
| Built for Shopify | No | Yes |
| Launched | Dec 8, 2015 | Nov 3, 2021 |
| Languages | 1 | 1 |
| Developer | In Cart Upsell | UpsellPlus |
Switching movement
1 store dropped one and added the other in the last 180 days
FAQ
ICU• In Cart Upsell Cross Sell and UpsellPlus Checkout Upsell: common questions
- Which is more popular, ICU• In Cart Upsell Cross Sell or UpsellPlus Checkout Upsell?
- ICU• In Cart Upsell Cross Sell is detected on 12× as many Shopify stores as UpsellPlus Checkout Upsell: 1,225 vs 100 as of Nov 6, 2026.
- Is ICU• In Cart Upsell Cross Sell or UpsellPlus Checkout Upsell cheaper?
- Both list a free plan. Paid plans start at $9.99/month for ICU• In Cart Upsell Cross Sell and $49/month for UpsellPlus Checkout Upsell. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- Which has better reviews, ICU• In Cart Upsell Cross Sell or UpsellPlus Checkout Upsell?
- On the Shopify App Store: ICU• In Cart Upsell Cross Sell 4.8 from 584 reviews and UpsellPlus Checkout Upsell 5.0 from 152 reviews.
- What features does each app list that the other doesn’t?
- ICU• In Cart Upsell Cross Sell lists 18 the others don’t mention, such as Automatic discounts, Bundles, Buy more, save more, Cart drawer. UpsellPlus Checkout Upsell lists 11 the others don’t mention, such as Announcement bar, Checkout upsell, Free gifts, Multi-language. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- Are stores switching between ICU• In Cart Upsell Cross Sell and UpsellPlus Checkout Upsell?
- 1 store dropped one and added the other in the last 180 days. Which stores, and in which direction, is in Shoplist.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Nov 6, 2026; estimated figures are labeled.
Keep comparing
More matchups
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Nov 6, 2026. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.