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Store Detector Store Detector
For app developers

Find the Shopify stores that should be running your app

Search the index by installed app, pixel, category, country and traffic band — so your outreach list is stores that already have the problem your app solves.

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Shopify app growth is a distribution problem. The App Store surfaces you to whoever is already searching; everyone else has to be found. Cold outreach only works if the list is right.

The workflow

How to run it, step by step

Every step maps to a panel that exists today. Follow it in order and you have an answer in a couple of minutes.

  1. 1

    Find stores running your competitor

    A store already paying for a competing app has budget, has the problem, and has proven it will install something to fix it. That is the warmest list there is.

    App detection
  2. 2

    Filter by size so the economics work

    Traffic and revenue estimates let you cut the list to stores big enough to be worth a paid plan and small enough to still answer email.

    Traffic & revenue
  3. 3

    Segment by country and niche

    Ranking pages slice the index by country and niche, which is usually how a go-to-market plan is actually organised.

    Store rankings
  4. 4

    Let an assistant do the pulling

    The MCP server exposes store search, app lookup and pixel lookup as tools, so you can ask Claude or ChatGPT for the list instead of building the query yourself.

    Store rankings

What you get out of it

  • Build lists of stores running a competing app
  • Filter prospects by traffic band, country and category
  • Check pixel and analytics coverage across a segment
  • Pull it all through an AI assistant via MCP

Free tools that help here

Shopify App Detector Reveal the apps installed on any Shopify store. Pixel Detector Detect Meta, TikTok, GA4 and Pinterest pixels on any site.

Frequently asked questions

Can I search by app across the whole index?

Yes. That is the stores_using_app tool on the MCP server; the free app detector covers a single store.

Is contact data included?

No. We publish store data, not personal contact data — and we are not going to start. Storefronts publish their own contact routes.

Other ways people use it

For dropshippers For brand owners For agencies & freelancers For media buyers For ecommerce beginners

Ready to spy smarter?

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Add to Chrome — It's Free
  • Free to install
  • No account needed
  • Works on any Shopify store