See What Apps a Shopify Store Uses

TL;DR: Use the free Shopify App Detector to check a store in your browser, or install the Store Inspector Chrome extension for one-click checks while browsing. You can also inspect the page source and search for <!-- BEGIN app block: comments.

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An app detector gives you a shortlist of visible integrations. Source inspection explains why a tool appears in that list; network inspection can reveal integrations that load after navigation, consent or an interaction. Combine the checks before turning a detection into a competitor observation or an agency pitch.

An installed-app inventory and a storefront detection list answer different questions. Inventory and accounting apps may never serve assets to shoppers, while an old script can remain after a merchant stops using a service. For dated population comparisons, see the app adoption report.

Method 1: Use a Shopify App Detector Extension

Extensions scan the loaded page for supported signatures. Use the web-based Shopify App Detector for a single-store check without installing an extension. Neither approach is a complete inventory of the merchant's installed apps.

Store Inspector (Free)

Store Inspector is a free Shopify app detector that finds:

Visit a storefront, open the extension and record the detected names with the page URL and observation date. Repeat on a product page when the feature you are researching renders there.

Pros:

• Free
• Detects apps, pixels, and themes
• Groups apps by category

Cons:

• Chrome only (for now)

Other Shopify App Detector Tools

For a full comparison of every option, see our best Shopify app detector tools roundup.

Prices checked October 10, 2026 against Koala's pricing and BuiltWith's plans. Allowances and paid report features differ.

A Dated Check: Candidates Versus Visible Features

On October 10, 2026, we inspected this Gymshark product page in a browser and separately ran StoreInspect's app parser against saved public HTML from the homepage and product page. These checks answered different questions:

Every parser candidate was marked as a global signature match. We did not validate those candidates as installed apps. Neither Loop nor GovX appeared in that candidate list, although the rendered links provided direct evidence of public routes to their services. The links do not establish which app is installed, its plan, or the merchant's backend configuration.

The browser check also found an Email Sign Up control; it did not establish its provider or effectiveness. No consent interaction, network waterfall, account, checkout or merchant-admin inventory was inspected. For a delayed widget, the next useful check would be the network method below, with consent state and interaction recorded. This example shows why a detector list should be checked against the actual feature you are researching.

Method 2: Check the Source Code to Find Shopify Apps

Don't want to install anything? Check the page source yourself to see what apps a store uses.

How to View Page Source

1. Open the Shopify store in your browser
2. Right-click anywhere
3. Click "View Page Source" (or press Ctrl+U / Cmd+Option+U)
4. Press Ctrl+F / Cmd+F to search
5. Look for app signatures

What to Search For

These snippets illustrate the kinds of clues to search for; they are not a recorded scan of a named store.

App block comments

<!-- BEGIN app block: shopify://apps/klaviyo -->

The identifier after /apps/ is a clue to the app's identity. Cross-check it against the vendor's domain or Shopify App Store listing; a slug does not establish which plan or feature the merchant uses.

Script sources

<script src="https://cdn.judge.me/widget.js"></script>
<script src="https://static.klaviyo.com/onsite/js/klaviyo.js"></script>

Common domains

Pros:

• No tools needed
• Works in any browser
• Free

Cons:

• Takes time
• You need to know what to look for
• Easy to miss apps

Method 3: Inspect Network Requests to Find Shopify Apps

The Network tab can reveal vendor assets loaded after the initial HTML. Record whether you observed a library download, an API call or a tracking event; they do not establish the same behavior.

How to Use DevTools

1. Press F12 to open DevTools
2. Go to the Network tab
3. Refresh the page with the log open
4. Record the consent state, then inspect a product page or trigger the relevant widget
5. Filter by "JS" or "Fetch/XHR" and record the relevant third-party request URL

What You'll Find

An old Google Optimize signature is historical residue, rather than an active testing service. Google discontinued Optimize on September 30, 2023. Native Shopify testing and private experiments may not appear as a third-party app.

Some apps load after the page loads. Network inspection catches these.

Pros:

• Can reveal requests absent from the initial source
• Shows tracking pixels
• Shows API calls

Cons:

• Needs some tech knowledge
• Takes time

Method 4: Online Shopify App Detector Tools

Websites that scan stores for you. No install needed.

How It Works

Paste a Shopify store URL into the StoreInspect app detector. Treat its output as supported detections on the checked storefront. Record the URL and date, then use source or network inspection to investigate a relevant result.

Options

• StoreInspect Shopify App Detector - Free app and pixel signature check for one store
• For other services, compare supported signatures, pages visited, consent handling and evidence shown with each result.

Pros:

• No install
• Quick for one-off checks

Cons:

• Coverage depends on the service's supported signatures and scan conditions
• May need signup
• Limited free usage

What Shopify Apps Can (and Can't) Be Detected

Apps You Can Detect

Frontend integrations can leave these observable clues:

Apps You Can't Detect

• Backend apps - Inventory, fulfillment, accounting
• Private apps - Built for one store
• Customized apps - Signatures removed
• Admin tools - Never load on the storefront

Best Shopify App Categories to Research

Look at these categories when doing competitor research:

Klaviyo, Recharge and a review tool together suggest workflows to inspect: signup capture, subscription offers and product-page reviews. They do not reveal revenue, profit or the merchant's budget.

Tips for Shopify Competitor Research

Focus on why stores use apps, not just what they use.

FAQ

Can I see ALL apps a Shopify store uses?

No. Coverage varies by supported signature, page, consent state and implementation. Backend tools may leave no public evidence, and custom integrations may not match a detector. A recall percentage would require a comparison with the merchant's actual installed inventory.

What does manual inspection show?

The methods here inspect assets a public storefront serves in your own browser. They show public implementation clues; they do not grant permission for bulk collection or establish which uses of that information are permitted.

How often should I check competitor Shopify stores?

Recheck before using an observation in outreach or choosing an integration. Keep dated records if you want to compare changes; one observation cannot establish when an app was added or removed.

What's the best Shopify app detector?

A browser extension is convenient while browsing. Source and network inspection help explain its results. Choose based on the evidence you need, rather than an unmeasured accuracy ranking.

Summary