How to find Shopify stores by the apps they use (and why it beats any lead list)

Every Shopify store leaves clues in its own page source. The reviews widget, the email popup, the subscription button and the ad pixels all load scripts with recognizable names. Read those, and you know a lot about a store before you ever write to it.

For anyone selling to Shopify merchants, that's the most useful targeting signal there is. It tells you three things a generic lead list can't.

1. What the store already has

If you sell a reviews app and the store already runs Judge.me, Yotpo or Okendo, your email starts uphill: you're asking them to switch, not to start. That can still work, but it's a different pitch with a different offer.

If you run an email marketing agency and the store has no Klaviyo, Omnisend or Privy, there's probably no welcome series, no abandoned-cart flow, nothing. That's a gap you can name in one sentence.

Rule of thumb: skip stores that already have what you sell, unless your pitch is specifically about switching.

2. What the store is missing

Absence is as useful as presence. Some combinations that point to clear opportunities:

• Ad pixel but no email platform. They pay for traffic and let it leave without capturing anything. Strong fit for email and SMS agencies.
• Consumable products but no subscription app. Coffee, supplements, skincare or pet food with no subscribe-and-save. Fit for subscription apps and retention agencies.
• Lots of products but no reviews app. Fit for reviews apps and for agencies doing conversion work.
• Page builders like PageFly, Shogun or GemPages. Often heavy pages and slow loads. Fit for speed optimization and custom theme development.

3. How much the store spends

Apps cost money. A store running a paid reviews app, a helpdesk and a subscription tool is spending real money every month on its store. That's a merchant who pays for tools that work, which is exactly who you want to reach.

A Meta or TikTok pixel is the clearest signal of all: the store is buying ads today. If you sell anything that makes ad spend work harder, from creative to landing pages, that's your list.

How to check apps by hand

You can do this in a browser:

1. Open the store's homepage.
2. View the page source (Ctrl+U or Cmd+Option+U).
3. Search for names like klaviyo, judge.me, yotpo, recharge, gorgias, fbevents (the Meta pixel) or pagefly.

It works, but it takes a couple of minutes per store. That's fine for ten stores and painful for two hundred.

How MAALI does it

MAALI reads the same public page source when it researches a store and detects the most common Shopify apps and pixels automatically. You can use them as free filters on any campaign:

• Skip stores already using an app, for when they already have what you sell.
• Only stores using an app, for services built on top of a tool, like an ads agency targeting stores with the Meta Pixel.

Because these checks run before the AI research step, stores that fail them cost nothing. And when a store passes, the detected apps go into the draft email as evidence: "I noticed you run Klaviyo but there's no welcome popup on the homepage" is a much better opener than "I help brands grow."

A note on what not to do

App detection reads public code that every visitor's browser downloads. It doesn't involve logging in, guessing URLs or collecting anyone's personal data. Keep it that way: use what a store shows the world, respect robots.txt, and email only the business contact address the store publishes.

Next step: if you want a ready-made setup, the email marketing, reviews, subscriptions and paid ads templates in MAALI come with these app filters already set.