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UpsellEngine

Upsell & cross-sell for Shopify

AI upsells at every step. 0% revenue share.

UpsellEngine recommends the right products from product page to post-purchase — for one flat monthly fee. Never a cut of your sales.

Free plan · No card required · First AI offer in ~5 minutes

  • 7+ placements
  • AI-powered pairing
  • Flat fee — 0% commission
The full journey

One engine. Every step to the thank-you page.

Five stops from product page to post-purchase — UpsellEngine places the right AI offer at each one.

Why UpsellEngine

Flat fee. Real AI. Full coverage.

0% revenue share

One flat monthly fee, billed through Shopify. Your upsell revenue is yours — we never take a percentage, on any plan.

True AI recommendations

Claude AI pairs products from your order history and catalog — no rule-building. First offer live ~5 minutes after install. Hand-pick pairings whenever you want.

Full-journey coverage

7+ placements — product page, cart drawer, cart page, popups, checkout, post-purchase, thank-you. One app instead of three.

AI recommendation engine

Recommendations that sell smarter, not just more

UpsellEngine learns your catalog and your customers, then picks the perfect add-on for every shopper — optimised for the products that earn you the most profit and the stock you most need to move.

How the AI recommendation engine works, in two stages. Stage 1 runs automatically every night to learn your store: starting from your catalog and orders, it uses three parallel sources — reading a new store’s catalog to pair complementary items by meaning, learning from real orders once they arrive, and a full-coverage safety net so every product is covered — which merge into a recommendation for every product. Stage 2 runs live for each shopper as a sequence: when a shopper adds a product, the engine ranks candidates by what actually earns, then re-ranks by profit margin and inventory pressure to favour high-margin and slow-moving stock (the key difference), then filters for in-stock items at the right price with any A/B test, and shows the perfect offer in the cart.

Works from day one, at any scale

Every product gets a smart offer, with zero setup — whether you sell 10 products or 10,000.

Learns from real sales, not guesswork

It learns what your customers genuinely buy together, instead of a plausible-looking guess.

Optimises for profit + inventory

It nudges your highest-margin products and the slow-moving stock you most need to move.

Power features

The features that do the heavy lifting.

Post-purchase one-click

The offer that can't hurt conversion

It appears after payment, before the thank-you page. Accepting takes one click — charged to the vaulted card, no re-entered payment details, zero risk to checkout.

Shopify decides when the page can appear — some payment methods skip it. The honest list is in our docs.

Profit Optimizer

Rank offers by margin, not just revenue

COGS syncs from Shopify, and recommendations re-rank by what you actually keep. Other apps optimize revenue; UpsellEngine can optimize profit.

Inventory Rescue

Turn aging stock into upsell revenue

Overstocked and slow-moving products get boosted in recommendations, with optional automatic discount tiers that deepen over time. Dead stock moves without a fire sale.

A/B testing

Test offers, not hunches

Run product, discount, or headline variants. The winner is declared automatically at 95% statistical confidence — results in plain English, not a stats degree.

The dashboard

See exactly what it earned you.

Revenue generated, offers shown, acceptance rate, AOV lift — per feature and per product, with CSV export. No vanity metrics.

Pricing

Simple pricing. Never a percentage.

Monthly plans billed through Shopify. 14-day trial on paid plans.

Free
$0forever
50 orders/mo
  • Hand-picked offers
  • Core placements
  • "Powered by" badge
Start free
Starter
$29/mo
500 orders/mo
  • AI recommendations
  • Full analytics
  • No badge
Start 14-day trial
Most popular
Growth
$79/mo
2,000 orders/mo
  • FBT, add-ons, popups + thank-you
  • A/B testing
  • Profit Optimizer + Inventory Rescue
Start 14-day trial
Scale
$199/mo
Unlimited orders
  • Everything in Growth
  • Checkout upsells
  • Dedicated support
Start 14-day trial
0% revenue share on every plan — ever. Cancel anytime.Compare all plans →
The math

What upsell apps really cost.

Apps that take a cutUpsellEngine
Pricing model% of upsell revenue or usage tiersFlat monthly fee
At 2,000 orders/moGrows with every upsell$79 — fixed
As you scaleKeeps climbing$199 flat, unlimited orders
Pricing models as of July 2026 — dated, line-by-line comparisons on the compare page.Compare with ReConvert, AfterSell & Rebuy →
FAQ

Straight answers.

No — never, on any plan. UpsellEngine is a flat monthly fee. Competitors often charge success fees or usage tiers that grow with your order volume; we don’t.

Install the app and the first AI-generated offer is live in about 5 minutes. The AI pairs products from your order history and catalog; you can hand-pick or exclude pairings anytime.

Through Shopify. Charges appear on your regular Shopify invoice — no separate card, no third-party billing. Paid plans include a 14-day trial and you can cancel anytime.

$0 forever, up to 50 orders a month: hand-picked offers on the core placements, with a small “Powered by UpsellEngine” badge on widgets. Paid plans remove the badge and unlock AI recommendations.

Shopify — not the app — decides when the post-purchase page can show. It’s skipped for wallet and pay-later methods (Apple Pay, Shop Pay Installments, Klarna and similar), gift cards, digital-only orders, and a few other cases. When it is supported, accepting is truly one click. The full list is in our docs.

Yes — checkout upsells render inside Shopify checkout via the checkout editor (available to Shopify Plus stores, on the Scale plan). All other placements work on every Shopify plan.

Keep 100% of your upsell revenue.

Start free — 50 orders a month, no card required. Your first AI offer is live in about 5 minutes.