Detected Sep 4, 2026
Free plan +5 more
NoYes
28-day free trial14-day free trial
+3 more changes in this update

Upsell and cross-sellBy Appiers5.0 (5 reviews)Updated September 3, 2026
Shoplist has not found Checkout Upsell — Addonn on a storefront yet, so it tracks the app through its 5 public reviews, pricing, and listing changes instead. Storefront detections will appear here as soon as Sonar finds them.
Get alerted on first storefront installs, review spikes, pricing changes, and listing edits.
Store movement comes from Sonar's storefront scans; listing changes come from the Shopify App Store page.
App Store listing
Detected Sep 4, 2026
NoYes
28-day free trial14-day free trial
+3 more changes in this update
Detected Aug 18, 2026
Detected Aug 10, 2026
Detected Aug 3, 2026
Apps merchants weigh against Checkout Upsell — Addonn, with their own detected stores and ratings.
Upsell paid services & extras at checkout—shipping, gifts, warranties and more add-ons
Turn checkout into revenue with optional service add-ons. Offer express shipping, gift services, warranties, and premium extras with one-click toggle widgets. Native Shopify Plus checkout integration means no pop-ups or redirects. You keep 100% revenue—zero commissions ever. Built for global stores with multi-currency and translation support. Create up to 10 add-ons with fixed or percentage pricing. Customers choose extras at checkout, you get automatic revenue. Works with high-volume stores.
Every number on this page comes from public storefront scans and the public Shopify App Store listing. If Shoplist shows Checkout Upsell — Addonn on a store, it is there.
Read the data methodologyCompare
Detected stores, ratings, pricing, and momentum side by side.
Developer
Every app Appiers 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.