Detected Aug 7, 2026

Upsell and cross-sellBy Normalize3.7 (3 reviews)Updated September 3, 2026
Shoplist has detected TackOn: Cart Fees & Surcharges on 21 Shopify stores, listed below. Reviews, pricing, co-installed apps, and listing changes fill in the rest of the picture.
15 of 21 detected stores, ranked by traffic. The full list adds filters, contact availability, and CSV export.
6 more stores in the full list
A free account shows all 21 with filters and contact availability.
2 new detections in the last 28 days. Store movement comes from Sonar's storefront scans; listing changes come from the Shopify App Store page.
App Store listing
Detected Aug 7, 2026
Detected Aug 11, 2026
The categories, store sizes, and countries of the stores Sonar detects it on, and the apps most often installed alongside it.
Brands using TackOn: Cart Fees & Surcharges, grouped by product count
Share of currently detected stores, top five.
Apps merchants weigh against TackOn: Cart Fees & Surcharges, with their own detected stores and ratings.
Add cart fees, surcharges & handling charges. Customers opt-in. You keep 100% of revenue.
Add cart surcharges, handling fees, and extra charges to Shopify checkout. Use for processing fees, expedited shipping, rush orders, shipping insurance, gift wrap service, tip collection, donation box, environmental fees, fragile item handling, oversized product charges, and custom service fees. Customers choose to add fees with an opt-in toggle. Keep 100% of revenueβzero commission or revenue sharing. Compatible with slide cart, cart drawer, cart page, and all Online Store 2.0 themes.
Every number on this page comes from public storefront scans and the public Shopify App Store listing. If Shoplist shows TackOn: Cart Fees & Surcharges on a store, it is there.
Read the data methodologyCompare
Detected stores, ratings, pricing, and momentum side by side.
Developer
Every app Normalize publishes, with their detected reach.
Rankings
The ten apps gaining the most detected installs in each category.
Directory
Browse every app Shoplist tracks, by category, rating, and reach.
Filter by category, country, and traffic, see contact availability, and get alerted when stores install or leave.
73/100
Adoption, install momentum, reviews, listing freshness, and pricing posture, weighted into one public score.