Checkout Boost: Rules & Upsell 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 8, 2026.
The short answer
- UpsellPlus Checkout Upsell is detected on 2.2× as many Shopify stores as Checkout Boost: 106 vs 49 as of Nov 8, 2026.
- On the Shopify App Store: Checkout Boost 5.0 from 10 reviews and UpsellPlus Checkout Upsell 5.0 from 151 reviews.
- Both list a free plan. Paid plans start at $49/month for Checkout Boost and $49/month for UpsellPlus Checkout Upsell.
- UpsellPlus Checkout Upsell lists 16 features Checkout Boost’s listing doesn’t mention, including A/B testing, Announcement bar, Cart drawer.
Head to head
Grow AOV, post-purchase, BOGO, offers, funnels, gifts
- United States
- Australia
- United Kingdom
- 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.
Starter
- · All checkout pages
- · Compatible with Shopify Plus stores only
- · Delivery option: Hide, Rename, Reorder
- · Dev store access free
- · Payment method: Hide, Rename, Reorder
- · Unlimited static content blocks
Plus
- · All Starter features
- · BXGY & free gift automation
- · Checkout validation
- · Conditional content blocks
- · Post purchase & checkout upsell
- · Rule based discount codes
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 featureCheckoutBoost is the ultimate checkout customization app for upsells, post-purchase one-click offers, cross-sells & checkout blocks. Build checkout UI extensions with a no-code drag-and-drop editor powered by checkout extensibility. Apply 60+ smart conditions based on cart value, product tags, collections, customer segments & geography. Automate discounts code, BXGY deals & free gift rules.
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.
- No-Code simple drag-and-drop checkout editor
- Global conditions engine for cart value, tags, customer attributes & more
- Build your own content checkout extension with text, banner, button and more
- Customizable upsell, form, content, and promotional checkout blocks
- 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 |  Checkout Boost |  UpsellPlus Checkout Upsell |
|---|---|---|
| Detected stores | 49 | 106(ahead) |
| Net store change, 28 days | 0 | +15 |
| Stores added, 28 days | Not enough data | 17 |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Apparel & Accessories, Food, Beverages & Tobacco, Sporting Goods | Apparel & Accessories, Health & Beauty, Food, Beverages & Tobacco |
| Top store countries | United States, Australia, United Kingdom | United States, United Kingdom, Sweden |
Reviews
| Measure | Checkout Boost | UpsellPlus Checkout Upsell |
|---|---|---|
| App Store rating | 5.0 ★ | 5.0 ★ |
| App Store reviews | 10 | 151(ahead) |
| New reviews, 28 days | Not enough data | 6 |
| Reviewers a year or more in | Not enough data | 11% |
Pricing
| Measure | Checkout Boost | UpsellPlus Checkout Upsell |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $49/month | $49/month |
| Longest free trial | 30 days | 14 days |
| Plans listed | 2 | 4 |
Listing
| Measure | Checkout Boost | UpsellPlus Checkout Upsell |
|---|---|---|
| Shopify category rank | #101 | #22(ahead) |
| Shopify App Charts | #12 in Checkout - Other | #11 in Checkout - Other |
| Built for Shopify | Yes | Yes |
| Launched | Apr 19, 2024 | Nov 3, 2021 |
| Languages | 1 | 1 |
| Developer | Checkout Boost | UpsellPlus |
FAQ
Checkout Boost and UpsellPlus Checkout Upsell: common questions
- Which is more popular, Checkout Boost or UpsellPlus Checkout Upsell?
- UpsellPlus Checkout Upsell is detected on 2.2× as many Shopify stores as Checkout Boost: 106 vs 49 as of Nov 8, 2026.
- Is Checkout Boost or UpsellPlus Checkout Upsell cheaper?
- Both list a free plan. Paid plans start at $49/month for Checkout Boost 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, Checkout Boost or UpsellPlus Checkout Upsell?
- On the Shopify App Store: Checkout Boost 5.0 from 10 reviews and UpsellPlus Checkout Upsell 5.0 from 151 reviews.
- What features does each app list that the other doesn’t?
- Checkout Boost lists 4 the others don’t mention, such as Bundles, Custom rules, Drag-and-drop editor, Free shipping. UpsellPlus Checkout Upsell lists 16 the others don’t mention, such as A/B testing, Announcement bar, Cart drawer, Cart upsell. 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; 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. 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.