Monitor your Shopify apps and checkout.

We check your apps every day and your checkout every hour. When an app changes, we test your checkout straight away. We alert you if shoppers can't get to checkout, or if your checkout button sends them to the wrong site.

Free one-off scanAbout 1–2 minutesNo install

Or start a 7-day free trial, then from $39/month.

Rated 5/5 by merchants on the Shopify App Store

Here's what that looks like on a real store.

Revenue Shield research referenced by

What we check, and when we alert you.

Uptime tools only check that your site loads. We check that shoppers can actually buy, and we show you when an app on your store changes. See how it compares

Your apps, checked every day

01

An app on your store changes what it does.

Each day we list every app and script running on your storefront, and what each one can get at, like your checkout buttons or shopper details. When an app changes, we test your checkout straight away, and alert you if it broke.

We also flag apps Shopify has removed from the App Store, and every plan includes an app exposure report. Apps Shopify has removed

Example: the Changes page for acidrunning.com. Klarna updated its code, so we tested the checkout straight away. It passed.

Your checkout, checked every hour

02

Shoppers can't get to checkout.

Every hour, real browsers go from product to cart to checkout on desktop and mobile. If a step fails, you get an alert by email or Slack, and the run's video and screenshots are kept.

Tests stop before payment, so there are no orders, charges or stock changes. They're built automatically from your store when you install.

Example alert for a failed test, in Slack and by text.Example alert for a failed test, in Slack. Alerts go by email and Slack, and by SMS on Growth and above.

03

Your checkout button sends shoppers to the wrong site.

Apps on your store can change what your checkout button does. If one is misused, shoppers can be sent to a fake checkout page instead of yours. Every run checks the button still leads to your own Shopify checkout. If it doesn't, two fresh browsers check again, and we alert you only when they confirm it.

This really happens. In October 2026, three Shopify app vendors confirmed attackers had used their apps to send shoppers to fake checkout pages.

A real test run on acidrunning.com: the checkout button led to the store's own checkout, as expected.

The free scan checks your store once. A plan keeps checking.

With a plan, we check your apps every day and your checkout every hour, and alert you when something breaks.

Every plan includes app monitoring, the app exposure report and checkout testing. 7-day free trial, billed through Shopify. Uninstall any time; nothing is left behind.

Start 7-day free trialCompare plans
  • StarterOne store, your core purchase flows, hourly on desktop and mobile, email and Slack alerts$39/mo
  • GrowthEverything in Starter, plus SMS alerts, CSV export and unlimited runs$79/mo
  • AgencyUnlimited stores and the agency portal, checks as often as every 15 minutes$199/mo

Agencies: one portal for every client store, on the Agency plan.

Find out before your customers do.

Free one-off scanAbout 1–2 minutesNo install

Or start a 7-day free trial, then from $39/month.