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QSortby: Best Sellers & Upsell

Auto-sort collections by best sellers and upsell in the cart

by QDN · Launched: July 2026 · Free plan available.

5.0 (1) on Shopify
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Auto-sort any collection by real-time sales: best sellers to the top, sold-out to the bottom. Preview the new order before it publishes, then A/B test it.

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About QSortby: Best Sellers & Upsell

QSortby keeps every collection ordered by what is actually selling: pick a signal - sales velocity, revenue, margin, conversion or trending - and new orders re-score it in seconds. You write the ranking rule in plain words, and preview the exact new order side by side before it publishes. Sold-out products sink and return on restock. The same ranking also feeds cart, bundle, popup, thank-you and in-checkout offers - and any sort can run as an A/B test against your current order.

Last verified: September 11, 2026 · Fresh

App details

Developer
QDN
Category
Store design
Pricing
Free plan available
Launched
July 2026
Rating
5.0 (1) on Shopify

Key features

  • Real-time best sellers, 1 collection
  • Sold-out products auto-demoted
  • Cart upsell + free-shipping bar
  • Revenue attribution dashboard
  • Ranking window from 7 days
Integrations with:

Checkout Shopify Admin

4 plans · starts free · 10-day free trial

Free

Free

Starter

$29/month

Pro

$99/month

Growth

$199/month

Plans and prices as listed on the Shopify App Store.

Ratings & reviews

based on 3 Shopify App Store reviews

Use the arrows to read individual reviews

Set-and-forget in the best way. We have ~500 SKUs and our collections were manually ordered and permanently out of date. QSortby now re-sorts them on live sales data — top sellers up, sold-out down — with zero input from me. The per-visitor personalization was the upsell that convinced me, and the AI rule suggestions meant setup was minutes, not an afternoon. Analytics show CTR per sort rule, so y...
— SaveOnFormula
We sell handcrafted pottery, fountains, stone lanterns and outdoor furniture out of California — pieces that come in 40+ finishes and don't restock on a schedule. Our collections had the same problem for years: the top of the page was whatever sold well last quarter, and half of it was gone. The app scores products live against real sales and puts in-stock first then the sold out sinks. For a cat...
— Pottery & Decor
Sorting collections was something we did by hand, badly, and always a week too late for stationaries products with thousands of SKU we have. This app is awesome for us to manage ads running to our collections, and also for keeping the customers browsing. Thanks to Quang for walking us through and helping us out on the app logic. Some learning curve is there with the A/B testing engine, otherwise...
— Bảo Anh - Văn Phòng Phẩm

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