Cart X ‑ Post Purchase Upsell vs Cartboost ‑ Cart Upselling
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 7, 2026.
The short answer
- Cart X is detected on 8.3× as many Shopify stores as Cartboost: 33 vs 4 as of Nov 7, 2026.
- Only Cart X lists a free plan. Paid plans start at $19/month for Cart X and $7/month for Cartboost.
- Cart X lists 27 features Cartboost’s listing doesn’t mention, including A/B testing, AI recommendations, Announcement bar.
Head to head
- France
- United States
- Australia
- United States
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
FREE · 100 ORDERS
- · "Powered by Cart X" badge on offers
- · Community + Email support
- · Popup, post-purchase & thank you offers
- · Unlimited funnels
- · Up to 100 store orders/month
GROW · 1K ORDERS
- · Chat support
- · No Cart X badge on offers
- · Popup, post-purchase & thank you offers
- · Unlimited funnels
- · Up to 1,000 store orders/month
SCALE · 10K ORDERS
- · Chat support
- · No Cart X badge on offers
- · Popup, post-purchase & thank you offers
- · Unlimited funnels
- · Up to 10,000 store orders/month
UNLIMITED
- · No Cart X badge on offers
- · No order limit
- · Popup, post-purchase & thank you offers
- · Priority chat support
- · Unlimited funnels
Basic Plan
- · 1 Active Upsell at a time
- · CartBar Upsells
- · Incart Upsells
- · Includes
Enterprise
- · 3 Active Upsells at a time
- · Analytics
- · CartBar Upsells
- · Incart Upsells
- · Includes
Shopify Plus
- · Analytics
- · CartBar Upsells
- · Incart Upsells
- · Includes
- · Unlimited Active Upsells at a time
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureCart X is a one click upsell app that allows you to add & manage upsell & cross-sell funnels to reconvert customers. We offer one click upsells (OCU), Pop-up and thank you page in-cart offers. We will help you to Boost your Revenue, Conversion Rate & Average Order Value (AOV). Get your customers rebuy and resell your products easily.
Getting people to come to your online store to buy your items can be difficult. That's where Cartboost comes in. Using Cartboost, online e-commerce stores are able to create in-cart upsells and cart page optimizations. The app is able add upsells to your cart funnel process from browsing to checkout, creating a seamless experience for your customers.
- Add cart pop-up aftersell and Post purchase vitals offers with countdown
- Easy drag & drop thank you page builder with cross-sell, coupon & discount
- Reconverting One Click Upsell (OCU), Thank You Page, Checkout Upsell & popup
- Our analytics allows you to track the best performing funnels & products
- Create smart in cart upsells to enhance your store’s AOV
- Add CartBar on your cart page to enhance conversions
- View Analytics from an easy to use dashboard
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 |  Cart X |  Cartboost |
|---|---|---|
| Detected stores | 33(ahead) | 4 |
| Net store change, 28 days | −1 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Apparel & Accessories, Health & Beauty, Animals & Pet Supplies | Health & Beauty, Services |
| Top store countries | France, United States, Australia | United States |
Reviews
| Measure | Cart X | Cartboost |
|---|---|---|
| App Store rating | 5.0 ★ | Not published |
| App Store reviews | 48 | Not published |
| New reviews, 28 days | 1 | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
FAQ
Cart X and Cartboost: common questions
- Which is more popular, Cart X or Cartboost?
- Cart X is detected on 8.3× as many Shopify stores as Cartboost: 33 vs 4 as of Nov 7, 2026.
- Is Cart X or Cartboost cheaper?
- Only Cart X lists a free plan. Paid plans start at $19/month for Cart X and $7/month for Cartboost. 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?
- Cart X lists 27 the others don’t mention, such as A/B testing, AI recommendations, Announcement bar, 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 7, 2026; 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 7, 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.