Checkout Assurance vs ReadyCart: Checkout Sentinel
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026.
The short answer
- Only ReadyCart lists a free plan. Paid plans start at $99/month for Checkout Assurance and $9/month for ReadyCart.
- ReadyCart lists 4 features Checkout Assurance’s listing doesn’t mention, including Custom alerts, Notification rules, Scheduling.
Head to head
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Advanced
- · CSV Export
- · Error categorization And Failure Log
- · Failure Log and History
- · Instant Email Alerts With Failure Reason
- · Priority support
- · Real-Time Checkout Failure Detection
Enterprise
- · All Advanced Plan Features
- · Custom CRM integrations
- · Instant SMS Alerts (via Twilio)
- · Priority support
Free
- · 1 checkout monitor
- · Email incident alerts
- · Hourly browser checks
- · Recovery emails
- · Setup test with evidence
- · Shopify product handle following
Starter
- · 10 monitors
- · 15-minute checks
- · Email alerts
- · Persistent reminders
- · Recovery emails
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureCheckout failures happen silently. Payment declines, shipping errors, and abandoned checkouts go undetected while merchants lose revenue with no way to respond. Checkout Assurance monitors your store's checkout in real time and sends instant alerts with the customer's name, email, and phone number so you can act instantly.
Checkout Sentinel runs browser checks from a selected product page through add-to-cart and checkout. Merchants can choose a Shopify product so the monitor follows handle changes, or paste a product URL. Before monitoring starts, a setup test verifies the path and required buttons.
- Real-time alerts for payment declines with customer contact details
- Abandoned checkout detection with instant merchant email notification
- Summary analytics showing the top errors your customers face at checkout
- Monitors a product-to-checkout path
- Sends alerts with evidence
- Follows Shopify product handle changes
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 Assurance |  ReadyCart |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | Checkout Assurance | ReadyCart |
|---|---|---|
| App Store rating | 5.0 ★ | Not published |
| App Store reviews | 2 | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Checkout Assurance | ReadyCart |
|---|---|---|
| Free plan | Not listed | Yes |
| Lowest paid monthly plan | $99/month | $9/month(ahead) |
| Longest free trial | 3 days | Not listed |
| Plans listed | 2 | 2 |
Listing
| Measure | Checkout Assurance | ReadyCart |
|---|---|---|
| Shopify category rank | #188(ahead) | #383 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | May 4, 2026 | May 19, 2026 |
| Languages | 1 | 1 |
| Developer | Checkout Assurance | Perfect Stores |
FAQ
Checkout Assurance and ReadyCart: common questions
- Is Checkout Assurance or ReadyCart cheaper?
- Only ReadyCart lists a free plan. Paid plans start at $99/month for Checkout Assurance and $9/month for ReadyCart. 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?
- ReadyCart lists 4 the others don’t mention, such as Custom alerts, Notification rules, Scheduling, Staff notifications. 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 13, 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 Oct 13, 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.