---
title: Shopify App Detector - See Any Store's App Stack
description: Paste any Shopify store URL, see which of 50+ known apps it has installed across reviews, email, loyalty, search and more. Free, no signup.
canonical: https://tacey.app/tools/shopify-app-stack-detector
---
# Shopify App Detector - See Any Store's App Stack

Paste any Shopify URL. See every app it runs, across reviews, email, loyalty and 14 more categories.

## See exactly which Shopify apps any storefront has installed

This tool fingerprints any Shopify storefront against a database of 50+ known Shopify apps across 18 categories - reviews, email, loyalty, subscriptions, search, page builders, live chat, mobile apps, and more. We scan the home page and one product page, look for known signatures (script URLs, CSS classes, window globals), and return a categorized list with confidence ratings. Public data only, no login required.

## Detect any Shopify store's app stack

1. Paste the storefront URL (yours or a competitor's). Custom domain or .myshopify.com both work.
2. Click Detect apps. The tool fetches the home page and one product page and runs them through our fingerprint database in 3-5 seconds.
3. Read the categorized results. Apps are grouped by category (Reviews, Email/SMS, Loyalty, etc.) and rated by confidence: high (multiple strong signals), medium (single strong signal), low (weak hints only).
4. Click any app's link to visit its marketplace page if you want to evaluate it for your own store.

## How merchants actually use this

- Competitive research: map your top 5 category competitors' app stacks. Patterns emerge fast - common apps often correlate with category-leading retention or conversion.
- App vetting: before paying for a $40-200/mo app, see how many real, established Shopify stores actually run it. Empty market share = either niche or abandoned.
- Migration planning: when a brand moves to Shopify, app-stack visibility on their old + new storefronts shows what they're keeping vs replacing.
- Agency proposals: confirm a prospect's current stack before scoping integration work. Don't quote a Klaviyo migration if they already moved to Postscript.

## When to reach for this

- **Quarterly competitor scan**: Run your top 5 competitors. Anything new in their stack worth evaluating?
- **App-purchase due diligence**: Before adding a new app, see who else uses it. Real adoption beats marketing claims.
- **Sales / agency prospecting**: Approach prospects with a tailored pitch based on their actual stack, not a generic deck.

## Categorized list of detected apps with confidence ratings

Apps grouped into 18 categories (Reviews & UGC, Email & SMS, Loyalty, Subscriptions, Upsell, Search, Translation, Currency, Wishlist, Chat & Support, Bundles, Returns, Shipping, Analytics, Page builder, Mobile app). Each entry has a confidence badge (high / medium / low) and a link to the app's site. 5 detections per IP per day on the free tier.

## Other free tools

- [Address Validator](/tools/address-validator): Paste a shipping address. See whether it is deliverable, and what the correction would be.
- [Address Type Detector](/tools/address-type-detector): PO Box, freight forwarder, commercial or residential, and which carriers actually serve it.
- [Agentic Readiness Audit](/tools/agentic-readiness-audit): The 22 fields an AI shopping agent reads before it will recommend you, scored 0 to 100.
- [Theme Detector](/tools/shopify-theme-detector): Paste a storefront. Find out which Shopify theme it runs, and which version.
- [Sales Activity Estimator](/tools/shopify-sales-estimator): A directional read on how busy a Shopify store is, from public catalogue data only.
- [Universal Product Lookup](/tools/universal-product-lookup): Paste a product name or URL. See who else sells it across Shopify, and at what price.