Checkout Blocks & Customizer vs Quantity Selector Plus

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

  • Checkout Blocks & Customizer is detected on 4× as many Shopify stores as Quantity Selector Plus: 8 vs 2 as of Nov 8, 2026.

Head to head

Detected stores

Checkout Blocks & Customizer: 8
Quantity Selector Plus: 2

App Store reviews

Checkout Blocks & Customizer: 11
Quantity Selector Plus: —
Open this comparison in ShoplistFree account. Every feature, store and change, side by side.
Pitch
—
—
Categories
  • Checkout - Other
  • Forms
  • Checkout - Other
Languages
  • English
  • English
Launched
May 9, 2023
Jun 11, 2024
Built for Shopify
Not badged
Not badged
Reviews per month
1 last full month
—
Detected stores
8active installs
  • ORTC Clothing Co
  • BIRKENSTOCK
  • Ideal Nutrition
  • Muebles Pergo
  • Bug-A-Salt UK
+3 more
2active installs
  • Pebby Forevee
  • Self Reliance Outfitters
Most common store size
11-50 products50%
1,001-5,000 products50%
Top countries
  • Australia13%
  • Canada13%
  • Germany13%
  • United States100%

Momentum

New reviews each month

Review pace is the clearest public read on how fast an app is winning new merchants.

035MayMayJunJanJunJulCheckout Blocks & Customizer: 1 reviews in May 2024Checkout Blocks & Customizer: 1 reviews in May 2025Checkout Blocks & Customizer: 3 reviews in June 2025Checkout Blocks & Customizer: 3 reviews in January 2026Checkout Blocks & Customizer: 2 reviews in June 2026Checkout Blocks & Customizer: 1 reviews in July 2026
Checkout Blocks & CustomizerQuantity Selector PlusCompleted months only
Free options
Free planFree trial
Free planFree trial
Monthly range
—
$4.99/month
Plans
Free
Monthly$4.99/month
14-day free trial
  • · 24/7 Support
  • · Customizable Quantity Adjustments
  • · Easy Integration
  • · Localization Support
  • · Mobile-Friendly Design
Coverage
0 of 0 features0%
0 of 0 features0%
Unique strengths
—
—
000onlybothonly
Checkout Blocks & CustomizerQuantity Selector Plus0 features listed across both App Store listings

Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.

See every feature
Works with also listed by another
—
  • Checkout
How it sells itself

Customize your Shopify Plus Checkout with banners, promo code blocks, cart editing, custom fields and smart checkout rules. Add trust messages, show offers, collect GST/VAT and guide customers with powerful checkout blocks. Built on Shopify Checkout Extensibility to improve clarity, reduce drop-offs and boost conversion for Plus merchants.

"Quantity Selector Plus" empowers store owners by allowing customers to adjust item quantities directly in the checkout process, solving the problem of limited cart flexibility. Ideal for merchants aiming to enhance user experience and increase sales, this app streamlines the buying process, reduces cart abandonment, and improves customer satisfaction.

Key points
  • Display image, banner, text on any part of the checkout with conditional predefined rules to display.
  • Add banners and messages to boost trust and conversions at checkout.
  • Single Click Coupon list at checkout for customers ready to apply.
  • Checkout Cart Editing (change quantity, remove items,change variants).
  • Customizable Quantity Selector: Adjust item quantities directly in the checkout
  • Element Control: Hide/Show quantity input, remove button, and variant selector
  • Localization Support: Fully localizable to cater to a global customer base.
Screenshots
Encourage customers to add more items to their cart
Prepaid DiscountDynamic FieldDynamic Discount
Element Control
Customizable Quantity Selector24/7 Support
Most often alongside
—

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.

Showing only the rows where the apps differ.

Adoption

MeasureCheckout Blocks & CustomizerQuantity Selector Plus
Detected stores8(ahead)as of Nov 8, 20262as of Nov 8, 2026
Net store change, 28 days0estimated0estimated
Stores added, 28 daysNot enough dataNot enough data
Big-brand shareNot enough dataNot enough data
Top store categoriesHome & Garden, Apparel & Accessories, Food, Beverages & TobaccoApparel & Accessories, Sporting Goods
Top store countriesAustralia, Canada, GermanyUnited States

Reviews

MeasureCheckout Blocks & CustomizerQuantity Selector Plus
App Store rating5.0 ★Not published
App Store reviews11Not published
New reviews, 28 daysNot enough dataNot enough data
Reviewers a year or more inNot enough dataNot enough data

Pricing

MeasureCheckout Blocks & CustomizerQuantity Selector Plus
Free planNot listedNot listed
Lowest paid monthly planNo monthly plan listed$4.99/month
Longest free trialNot listed14 days
Plans listedNot published1

Listing

MeasureCheckout Blocks & CustomizerQuantity Selector Plus
Shopify category rank#76(ahead)in Checkout - Other#229in Checkout - Other
Shopify App ChartsNot on this week’s chartsNot on this week’s charts
Built for ShopifyNoNo
LaunchedMay 9, 2023Jun 11, 2024
Languages1English1English
DeveloperMarmeto AppsWidgets Factory

FAQ

Checkout Blocks & Customizer and Quantity Selector Plus: common questions

Which is more popular, Checkout Blocks & Customizer or Quantity Selector Plus?
Checkout Blocks & Customizer is detected on 4× as many Shopify stores as Quantity Selector Plus: 8 vs 2 as of Nov 8, 2026.
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.