What apps the most-visited Shopify stores run (October 2026)

I read the storefronts of 11,386 Shopify stores that rank among the 10,000 most-visited websites of their own country, in 63 countries, and recorded which apps load on the homepage and one product page. Klaviyo is on half of them. Judge.me leads reviews everywhere except the UK. Attentive is on 17% of top US stores and 0.3% of EU ones, and Afterpay shows up mostly in Australia and New Zealand.

The sample

• Stores come from my own index of 392,504 Shopify stores. A store counts as "most visited" when the Chrome UX Report puts it in the top 1,000, 5,000 or 10,000 websites of its country. 12,147 stores in the index meet that bar; 11,386 of them answered when I read them on 9 October 2026. The rest were down, unavailable or blocked.
• An app counts as present when its script or widget shows up in the page HTML. Apps that only run in the admin, at checkout or on the server are invisible this way, so every number here is a lower bound. I check 69 apps, not the whole App Store.
• Each country contributes the Shopify stores in its own top 10,000, so small markets weigh as much as big ones: Australia (842 stores) and New Zealand (819) are the largest groups, Denmark has 673 and the US 460. The overall numbers are a world average, not a US view; the regional table below splits them.

Most common apps

The median store runs 3 of the apps I check (mean 3.3); 92% run at least one. Stores in their country's top 1,000 run 3.7 on average, stores ranked 5,000 to 10,000 run 3.2.

Category leaders

Share of all stores, and in brackets the share of stores that use the category at all.

• Email and SMS (60.6% of stores): Klaviyo 51.2% (84%), Mailchimp 6.6%, Omnisend 5.1%, Attentive 2.1%.
• Reviews (53.3%): Judge.me 33.5% (63%), Trustpilot widget 9.4%, Yotpo 7.5%, Loox 6.1%, Okendo 3.2%, Reviews.io 3.1%, Stamped 2.3%.
• Support and chat (15.9%): Gorgias 10.3% (65%), Zendesk 2.9%, Tidio 1.7%, Re:amaze 1.0%.
• Upsell and personalisation (12.1%): LimeSpot 7.1%, Rebuy 4.0%, Nosto 1.6%.
• Search and filters (7.5%): Boost Commerce 4.1%, Searchanise 3.1%, Klevu 0.3%, Algolia 0.1%.
• Loyalty (5.2%): Smile.io 2.2%, LoyaltyLion 2.0%, Rise.ai 1.2%.
• Subscriptions (3.2%): Recharge 1.7%, Appstle 1.4%, Skio 0.2%.

Differences by region

Percent of stores in each region. Stores per region: US 460, Canada 379, UK & Ireland 1,008, EU 4,470, Australia & NZ 1,661, India 363, other Asia 1,670, Latin America 318, Africa 463.

• Klaviyo is on 58 to 67% of top stores in English-speaking markets and the EU. In India it's on 6.6% of top stores; there the common setup is Google Tag Manager, Judge.me and Microsoft Clarity.
• 17% of top US stores load Attentive, against 0.3% in the EU.
• The UK and Ireland are the only region where Judge.me isn't the top review app: the Trustpilot widget is on 29.7% of stores there, Judge.me on 23.8%.
• Afterpay is on 25.8% of top Australian and New Zealand stores and on 0.1% in the EU.
• Triple Whale is on 26.7% of top US stores, nearly twice its share in any other region (UK & Ireland 14.9%).
• In Africa, Mailchimp (16.0%) and Omnisend (13.2%) together come close to Klaviyo (28.3%).

Stores pick one app per job

Two apps that do the same job rarely load on the same store. Lift below 1 means they show up together less often than chance would predict.

• Judge.me and Okendo: 0.08
• Gorgias and Zendesk: 0.29
• Judge.me and Yotpo: 0.35
• Klaviyo and Omnisend: 0.36

Apps that complement each other show the opposite: Triple Whale and Elevar 1.9, Recharge and Klaviyo 1.75, Gorgias and Klaviyo 1.69. Only 1.6% of stores with a helpdesk run two of them, and 1.8% of stores with a loyalty app run two.

If you sell an app, a store that already runs a competitor would have to replace it, so pitch a switch.

Themes

Dawn, Shopify's free theme, is on 13.3% of these stores. Then Impulse 5.2%, Prestige 5.0%, Horizon 3.4%, Impact 3.3%, Enterprise 3.1%. Many stores rename their theme, so the long tail is noisy.

How to reproduce

The stores come from Shopify Store Leads, an Apify Actor I built on this index (https://apify.com/insanedev/shopify-store-list). It filters by country, popularity and detected apps, so you can pull, for example, every top US store that runs Yotpo. Ask in the comments if you want a number I didn't include; the aggregate tables are in a JSON file I can share.

I wrote the analysis script and this post with help from an AI assistant; the numbers come straight from the data.

insanedev, a developer from Ukraine