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Your next customersalready run your competitor.

Pick an app you compete with or sell alongside. See the Shopify brands running it, the ones that just added or dropped it, and when each was last checked.

239,247 Shopify brands run Klaviyo

Klaviyo: Email Marketing & SMS · counts as of Oct 26

  7. and 239,241 more running it today

The market doesn’t hold still.700,383 installs and 108,717 removals detected in 28 days.

This week: Tactically Acquired dropped Klaviyo on Oct 27, TnC raised its Pro plan to $14.99, and 433 apps launched on the App Store.

Recent observations from Sonar, Shoplist’s crawler · Oct 27, 12:00 UTC

  • Added
  • Removed
  • Listing changed

From one changeto the first conversation.

A real account, start to finish: what Shoplist showed when Tactically Acquired removed Klaviyo, and what you do next.

  1. Catch the change.

    Sonar stopped seeing Klaviyo on Tactically Acquired on Oct 27, 10 months after it first appeared. If you sell an email or SMS tool, that is the week to call.

  2. See what’s left.

    8 apps still run there, BixGrow Affiliate Marketing and Blockify Fraud Filter, Blocker among them. No helpdesk, subscriptions and upsell app is detected. That’s the shape of the opening, and of your pitch.

  3. Save it. Hear when it moves.

    Add the brand to a list with the reason attached, follow it, and get a Slack or email alert the next time its stack changes. Export the list when you’re ready to reach out.

If Shoplist shows an app on a store,it’s there.

Sonar, Shoplist’s crawler, reads Shopify storefronts and records the apps actually running on them. A detection is an observed install, not a probability, and every brand page shows when it was last checked.

  1. Visit the storefront

    Tactically Acquired, read Oct 27, 09:24 UTC.

  2. Find the apps running

    BixGrow Affiliate Marketing found running on the storefront itself.

  3. Record the install

    Detected since Feb 2026, with 8 apps in the stack.

  4. Keep checking

    When an app disappears, the removal is dated. Klaviyo left on Oct 27.

In the last 28 days Sonar started tracking 190,603 more brands and logged 112,558 App Store listing changes. Coverage grows every day.

How Shoplist detects apps

Four jobs it doesevery week.

Each runs on the same map of brands, apps and listings. Open one to see it working on this week’s data.

The whole product, one line each.

Brands, apps, developers and experts stay separate, linked by what Sonar observes between them.

Who do you compete with?Start with their customers.

Pick a competitor and build your first list. Shoplist keeps it current as installs and removals land.

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Free plan available. Exports, Market Voice and AI account reasoning are on paid plans.