---
title: "CartBoost: Checkout Upsell Shopify App Profile"
description: "CartBoost helps merchants increase Average Order Value directly within Shopify checkout. Set dynamic milestone reward progress bars for free shipping and gift tiers that update live with cart totals. Offer high-converting 1-click checkout order bumps and post-purchase upsells with zero checkout friction. Built 100% natively on Checkout Extensibility with no theme code injection or slow scripts. Easily customize blocks and monitor verified revenue lift in your Polaris dashboard."
canonical_url: "https://shoplist.co/shopify-apps/cartboost-checkout-upsell"
markdown_url: "https://shoplist.co/shopify-apps/cartboost-checkout-upsell.md"
last_updated: "2026-11-04"
entity_type: "shopify_app"
slug: "cartboost-checkout-upsell"
source: "public Shopify app profile allowlist"
---

# CartBoost: Checkout Upsell Shopify App Profile

> CartBoost helps merchants increase Average Order Value directly within Shopify checkout. Set dynamic milestone reward progress bars for free shipping and gift tiers that update live with cart totals. Offer high-converting 1-click checkout order bumps and post-purchase upsells with zero checkout friction. Built 100% natively on Checkout Extensibility with no theme code injection or slow scripts. Easily customize blocks and monitor verified revenue lift in your Polaris dashboard.

## Quick answer
CartBoost: Checkout Upsell has 0 detected stores in Shoplist. This Markdown profile displays 0 public brand examples; it is not a complete customer list.

## Key facts
- Name: CartBoost: Checkout Upsell
- Monitoring status: First-adopter watch
- Developer: ModApps
- Developer profile: https://shoplist.co/app-developers/modapps
- Shopify App Store URL: https://apps.shopify.com/cartboost-checkout-upsell
- Website: https://upsell.modapps.dev/
- Launch date: November 4, 2026
- Shoplist category: Loyalty & Referrals
- Free plan signal: Yes
- Free trial signal: Yes

## Pricing summary
Free: Free; Pro: $9.99/month

Shoplist has not yet found reliable public storefront evidence connecting a Shopify store to this app. This does not mean the app has no users. Some apps are new, admin-only, server-side, theme-independent, or otherwise difficult to detect from public storefront signals.


## App Signals
As of November 5, 2026:

- Stores running it: 0, 0.0% of the stores Shoplist tracks
- Store movement, last 28 days: not enough observed days yet
- Primary App Store category: Checkout - Other
- Listing reviews: 0

## Public callouts
- Checkout progress bar with tiered milestone rewards
- One-click order bumps placed directly inside native checkout
- Post-purchase 1-click upsells displayed right after payment
- Visual checkout customizer block with live admin simulator
- Real-time analytics tracking checkout impressions, lift, and AOV
## Shopify App Store categories
- Upsell and cross-sell
- Checkout - Other

## Data note
Profile updated: November 4, 2026. This is the profile revision date, not a guarantee that every store was checked on that date.
Public snapshot built: 2026-11-05 14:20:32.822828\+00
Detection metrics refreshed: 2026-11-05 10:00:00.259874\+00
Public app evidence date: 2026-11-04 23:05:01.359219\+00
This generated Markdown profile intentionally exposes only public, stable app-profile fields and a small public app-stack sample from Shoplist. It excludes private contact data, people data, internal scores, crawl provenance, full datasets, and unstable operational fields.

## Related links
- [HTML app profile](https://shoplist.co/shopify-apps/cartboost-checkout-upsell)
- [Shopify apps directory](https://shoplist.co/shopify-apps)
- [Shoplist data methodology](https://shoplist.co/data-methodology.md)