Shopify App Detector
Paste a Shopify store URL and read the apps it runs: reviews, loyalty, email, upsells and the rest, each with the fingerprint evidence that gave it away and a confidence level. The list opens on the store's full profile, next to its theme, traffic and revenue. Free to start, no signup needed for your first checks.
What Shopify apps is this website using?
A real scan of aventon.com. Each detected app carries the exact signals it matched, not just a name.
Example store
Apps detected
5
Reviews
Judge.me
Loyalty
LoyaltyLion
Evidence
4 signals
Scanned 2026-08-09. The Judge.me match, for example, rests on four independent signals: its CDN script, a global variable and two widget markers in the page.
How do you know which apps a store has installed?
A Shopify app detector identifies installed apps by matching the traces each app leaves in the public storefront: loader scripts, global variables, DOM markers and CDN paths. Every match is reported with the signals behind it and a confidence level.
Almost every Shopify app that does something a visitor can see must load something into the storefront to do it: a script from its own CDN, a widget container, a global JavaScript object. Those traces are as good as a signature. The detector fetches the store's public pages once and matches what it finds against a database of known app fingerprints.
The difference worth paying attention to is that the result shows its work. Each detected app lists the exact signals it matched, and carries a confidence level: high when the fingerprint is unique to that app, lower when the evidence is a shared pattern. When this page's sample store returns Judge.me on four independent signals, you are not being asked to trust a black box.
The same mechanism defines the honest boundary. An app that runs entirely in the merchant's backend, with no storefront footprint, leaves nothing to match, and no frontend scan can see it. The detector reports what the storefront proves and does not pad the list with guesses.
What the Shopify apps detector shows for every app
The evidence behind each match
Every detection lists the signals that produced it: script URLs, global variables, widget markers. You can disagree with a conclusion, because you can see the reasoning.
A confidence level, not false certainty
High means the fingerprint is unique to that app. Lower means the evidence is a shared pattern. The scale exists so one weak match cannot masquerade as a sure thing.
Category, developer and store listing
Detected apps come with their function, their developer and a link to the Shopify App Store listing when one exists, so the step from found it to evaluated it is one click.
Cached scans are free, and say so
A fresh scan costs 1 credit. If the store was scanned recently, you get the cached list at no cost and the page labels it, so you always know whether a check spent anything.
How do I find out what apps a Shopify store is using?
Paste the store URL
A bare domain or a full product link both work. We confirm the site is actually a Shopify store first, and that confirmation is free.
We match the storefront against known signatures
One fetch of the public storefront is matched against the app signature database. A fresh scan costs 1 credit; a recent cached result is free and labeled. The theme comes back in the same pass, at no extra cost.
Read the list on the store profile
You land on the apps block of that store's profile, evidence and confidence included, with the theme, traffic and revenue blocks one scroll away.
Which of those apps are worth copying?
Judge apps by stores that sell, not by ratings
App Store reviews measure how users feel; production installs measure what merchants keep paying for. The profile behind each scan shows the store's traffic and revenue estimate, so you can weight its app choices by whether the store actually performs.
Scan the leaders of a niche in one sitting
Run the four or five stores everyone in your niche cites. The app that appears in most of those lists is the de facto standard of your category, and now you know it without installing anything.
Walk into a pitch knowing the stack
Agencies scan a prospect before the first call. Knowing what the store already runs, and what an obvious gap looks like, turns a discovery meeting into a recommendation meeting.
Watch a competitor's stack change
An app appearing or disappearing from a rival's store is strategy made visible. Add the store to your watchlist and recheck it over time; cached re reads cost nothing.
App checker, plugin detector, tech stack checker
People reach this page calling it a Shopify app checker, a plugin detector, an installed apps checker, or by asking what apps a Shopify store uses. Different names, one method: read the fingerprints in the public storefront and show the evidence for every match.
Shopify App Detector FAQ
What it can and cannot detect
No, and no frontend scanner can. Apps that render or script anything in the storefront leave detectable traces, and those are found reliably. Apps that live entirely in the merchant's backend, accounting sync, fulfillment, some analytics, have no storefront footprint and cannot be seen from outside. The list you get is the store's visible stack, stated with evidence.
High: the matched signals are unique to that app, treat it as confirmed. Medium: strong but partially shared evidence. Low: a pattern that several tools use, treat it as a hint. The sample scan on this page shows both ends: Judge.me at high on four signals, Shop Pay at low on one.
Because the scan reports every fingerprint it matches, including platform level ones like Shopify's own scripts and Shop Pay. That is the evidence trail being honest rather than curated. The third party apps are the rows you are usually after.
Sometimes. A private app that injects scripts or widgets leaves the same kind of traces as a public one and may match generic patterns. A private app with no frontend footprint is invisible, the same boundary as any backend app.
Credits and cost
Free to start, honestly priced after that. Your first checks need no signup, a signed in account gets 5 free credits daily, and a fresh scan costs 1 credit. The scan returns the apps and the theme together, one credit for both.
No. Recent scans are cached and served free, and the page labels a free cached read so you can tell it apart from a scan that spent a credit.
No. Everything runs from the store URL you paste. There is nothing to install, and nothing you install could see more than the storefront already shows.
Reading the result
Cross the app list with the store's performance on the same profile. An app that keeps showing up in stores with real traffic and revenue is production proof. An app in a store with no audience proves only that someone installed it.
Straight to the app's Shopify App Store listing when the database knows it, so you can read pricing and reviews for yourself. Detections without a listing show whatever the fingerprint database knows about the developer.
The scan reads pages that are public to any visitor, nothing more. There is no notification to the merchant and nothing for them to approve.
Scope
This detector is built for Shopify storefronts and their app ecosystem. If a site is not Shopify, the check tells you that first, for free, instead of returning a half relevant list.
Yes. The same storefront fetch reads the app fingerprints and the theme declaration, so a single 1 credit scan answers both questions. The theme block sits directly above the apps on the store profile.
Free ecommerce tools for Shopify stores
Shopify Theme Detector
The theme a storefront runs, read in the same scan as the apps.
Try it freeShopify Traffic Checker
The traffic context that turns an app list into a recommendation.
Try it freeShopify Revenue Checker
A modelled estimate of what any Shopify store takes each month, with a free preview.
Try it free