Cart & Checkout Limit ‑ DMJ vs CartLock

Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 14, 2026 for Cart & Checkout Limit, Nov 3, 2026 for CartLock.

The short answer

  • Paid plans start at $2/month for Cart & Checkout Limit and $13.36/month for CartLock.
  • Cart & Checkout Limit lists 6 features CartLock’s listing doesn’t mention, including Cart alerts, Max quantity, Min quantity.

Head to head

App Store reviews

Cart & Checkout Limit: 12
CartLock: —
Open this comparison in ShoplistFree account. Every feature, store and change, side by side.
Pitch
—
—
Categories
  • Order limits
  • Order limits
Languages
  • English
  • English
Launched
Apr 1, 2024
Nov 3, 2026
Built for Shopify
Not badged
Not badged
Reviews per month
1 last full month
—
Detected stores
0active installs
0active installs
Most common store size
—
—
Top countries
—
—

Momentum

New reviews each month

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

035AprMayJunJulAugSepOctFebCart & Checkout Limit ‑ DMJ: 3 reviews in April 2024Cart & Checkout Limit ‑ DMJ: 4 reviews in May 2024Cart & Checkout Limit ‑ DMJ: 5 reviews in June 2024Cart & Checkout Limit ‑ DMJ: 3 reviews in July 2024Cart & Checkout Limit ‑ DMJ: 1 reviews in August 2024Cart & Checkout Limit ‑ DMJ: 1 reviews in September 2024Cart & Checkout Limit ‑ DMJ: 1 reviews in October 2024Cart & Checkout Limit ‑ DMJ: 1 reviews in February 2025
Cart & Checkout LimitCartLockCompleted months only
Free options
Free planFree trial
Free planFree trial
Monthly range
$2/month
$13.36/month
Plans
Pro$2/month
90-day free trial
  • · - All features for dev stroes
  • · - Set advanced product and cart limit
  • · - Support limits on specific variants
CartLock Pro Month$13.36/month
7-day free trial
  • · Custom dynamic error messages
  • · Enforce minimum spend order thresholds
  • · Native Shopify Functions edge speed
  • · Unlimited rules, zero hidden limits
  • · Works with Shop Pay & express checkout
  • · Zero theme edits or storefront lag
Coverage
9 of 10 features90%
4 of 10 features40%
Unique strengths
  • Cart alerts
  • Max quantity
  • Min quantity
  • Product page alerts
  • +2 more
  • Custom messages
Order limits
90%9/10
40%4/10
Limit rules
100%6/6
33%2/6
Notification settings
75%3/4
50%2/4
631onlybothonly
Cart & Checkout LimitCartLock10 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

Very powerful tool designed to enhance your Shopify store's functionality by allowing you to set limits on both the quantity and total price of items in customers' shopping carts and checkout. Key Features include applying checkout limits for each individual product separately or a total amount and quantity limit. Show custom messages to customers.

CartLock protects merchant profit margins by preventing customers from checking out below a set order value. Built natively with Shopify Functions, it executes server-side at checkout without modifying theme files. Unlike older apps relying on cart scripts, CartLock cannot be bypassed by express checkouts like ShopPay, ApplePay, or GooglePay.

Key points
  • Product Quantity Limit
  • Cart & Checkout Total Quantity Limit. Apply limit for each individual product.
  • Cart & Checkout Total Value Limit, Order Total Value Limit
  • Stop Big Fake COD order which can change your stats in analytics.
  • Edge checkout validation powered natively by Shopify Functions.
  • Blocks 1-click & express checkouts including ShopPay, ApplePay & GooglePay.
  • Custom error messages with dynamic {minSpend} and {subtotal} variables.
Screenshots
Store View
Limit Cart & Checkout , Amount & Quantity. Stop Fake COD OrdersGeneral SettingSet Product Max Limit
Saved checkout rule confirmation banner in Shopify admin
Checkout validation error message blocking low subtotal orderCartLock dashboard minimum spend and custom message setupCartLock feature banner showing checkout validation rules

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

MeasureCart & Checkout LimitCartLock
Detected storesNot publishedNot published
Net store change, 28 days0estimated0
Stores added, 28 daysNot enough dataNot enough data
Big-brand shareNot enough dataNot enough data
Top store categoriesNot publishedNot published
Top store countriesNot publishedNot published

Reviews

MeasureCart & Checkout LimitCartLock
App Store rating3.1 ★Not published
App Store reviews12Not published
New reviews, 28 days0Not enough data
Reviewers a year or more inNot enough dataNot enough data

Pricing

MeasureCart & Checkout LimitCartLock
Free planNot listedNot listed
Lowest paid monthly plan$2/month(ahead)$13.36/month
Longest free trial90 days7 days
Plans listed11

Listing

MeasureCart & Checkout LimitCartLock
Shopify category rank#92in Order limitsNot enough data
Shopify App ChartsNot on this week’s chartsNot on this week’s charts
Built for ShopifyNoNo
LaunchedApr 1, 2024Nov 3, 2026
Languages1English1English
DeveloperDMJLogik Vorsprung Technologies

FAQ

Cart & Checkout Limit and CartLock: common questions

Is Cart & Checkout Limit or CartLock cheaper?
Paid plans start at $2/month for Cart & Checkout Limit and $13.36/month for CartLock. 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 & Checkout Limit lists 6 the others don’t mention, such as Cart alerts, Max quantity, Min quantity, Product page alerts. CartLock lists 1 the others don’t mention, such as Custom messages. 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 Oct 14, 2026 for Cart & Checkout Limit, Nov 3, 2026 for CartLock; 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 Oct 14, 2026 for Cart & Checkout Limit, Nov 3, 2026 for CartLock. 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.