ICU• In Cart Upsell Cross Sell vs Simply Cartbooster
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 8, 2026 for ICU• In Cart Upsell Cross Sell, Oct 13, 2026 for Simply Cartbooster.
The short answer
- Both list a free plan. Paid plans start at $9.99/month for ICU• In Cart Upsell Cross Sell and $10/month for Simply Cartbooster.
- ICU• In Cart Upsell Cross Sell lists 28 features Simply Cartbooster’s listing doesn’t mention, including A/B testing, AI recommendations, Automatic discounts.
Head to head
Increase AOV with Upsell & Cross-sells without Popups Using AI
- United States
- United Kingdom
- Australia
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 Plan
- · 50 Upsell Orders/month
- · Create Discount on Upsell
- · Create Unlimited Upsell
Silver
- · 100 Upsell Orders/month
- · Create Unlimited Upsell
- · Discount on Upsell
GOLD
- · 500 Upsell Orders/month
- · Create Unlimited Upsell
- · Discount on Upsell
PLATINUM
- · Create Unlimited Upsell
- · Discount on Upsell
- · Unlimited Upsell Orders/month
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.
This is a simple application that will help you increase your revenue by offering targeted product offers. Simply Cartbooster will increase the average order values using specific product recommendations. Here, you offer more of what the customer is looking for and so provide a smooth and seamless shopping experience to them. This will ultimately lead to an increase in your store revenue.
- 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
- You can easily customize all the upsell rules.
- You will get a product wise analysis regarding their sales.
- You can create attractive pop up upsells with variants.
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 | Simply Cartbooster |
|---|---|---|
| Detected stores | 1,237 | Not published |
| Net store change, 28 days | −14 | 0 |
| Stores added, 28 days | 21 | Not enough data |
| Big-brand share | 11% | Not enough data |
| Top store categories | Apparel & Accessories, Health & Beauty, Home & Garden | Not published |
| Top store countries | United States, United Kingdom, Australia | Not published |
Reviews
| Measure | ICU• In Cart Upsell Cross Sell | Simply Cartbooster |
|---|---|---|
| App Store rating | 4.8 ★ | Not published |
| App Store reviews | 584 | Not published |
| New reviews, 28 days | 0 | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | ICU• In Cart Upsell Cross Sell | Simply Cartbooster |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $9.99/month(ahead) | $10/month |
| Longest free trial | 30 days | Not listed |
| Plans listed | 4 | 4 |
Listing
| Measure | ICU• In Cart Upsell Cross Sell | Simply Cartbooster |
|---|---|---|
| Shopify category rank | #181 | Not enough data |
| Shopify App Charts | #24 in Upsell and cross-sell | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Dec 8, 2015 | Dec 12, 2022 |
| Languages | 1 | Not published |
| Developer | In Cart Upsell | Lucent Innovation |
FAQ
ICU• In Cart Upsell Cross Sell and Simply Cartbooster: common questions
- Is ICU• In Cart Upsell Cross Sell or Simply Cartbooster cheaper?
- Both list a free plan. Paid plans start at $9.99/month for ICU• In Cart Upsell Cross Sell and $10/month for Simply Cartbooster. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- What features does each app list that the other doesn’t?
- ICU• In Cart Upsell Cross Sell lists 28 the others don’t mention, such as A/B testing, AI recommendations, Automatic discounts, Bundles. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- 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 8, 2026 for ICU• In Cart Upsell Cross Sell, Oct 13, 2026 for Simply Cartbooster; estimated figures are labeled.
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 8, 2026 for ICU• In Cart Upsell Cross Sell, Oct 13, 2026 for Simply Cartbooster. 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.