Does GemPages' funnel builder support upsell/cross-sell offers natively, or do I still need a separate app like Rebuy?
Short answer
GemPages' funnel builder supports upsells natively only after payment, with up to two offers; its funnel has no cart step and leaves checkout to Shopify (GemPages Help Center, October 2026). So a store that cross-sells in the cart still needs an app like Rebuy. Shopify allows only one post-purchase app at a time (Shopify Help Center, October 2026).
- GemPages' native offer surface
- Post-purchase page, up to two offersFree and Build cap upsell revenue at $100 a month; Optimize pays $10 per $1,000 past $1,000 a month; Enterprise pays none per GemPages' help center, but its Sales Funnel Builder page lists it under the fee (October 2026).Sources: GemPages Help Center (GemPages Sales Funnel & FAQs); GemPages (Shopify Sales Funnel Builder)
- Post-purchase apps per store
- One at a timeShopify runs post-purchase apps on the Basic plan and higher, one checkout app at a time (Shopify Help Center, October 2026).Source: Shopify Help Center (Customizing your checkout and customer accounts with apps)
- Checkouts that skip the offer
- Named wallets, installments and gift cardsShopify names Klarna, Affirm, AfterPay, Apple Pay, Amazon Pay and Google Pay, and skips orders with duties and multiple currencies (shopify.dev, October 2026).Source: Shopify developer docs (About product offers)
- Enterprise beats Optimize
- Above $15,000 of upsell revenue a monthOptimize's $59 plus commission passes Enterprise's $199 there, if Enterprise stays commission-free as GemPages' help center says (Deploi arithmetic from the figures above).Deploi arithmetic from the figures above
Deploi’s call
GemPages does not replace a merchandising engine, and it was not built to. It replaces a single-purpose post-purchase upsell app for a brand that runs simple offers. That is a real saving and a narrow one (Deploi position, October 2026).
BuyUse GemPages as your only post-purchase app when
- Post-purchase offers are your whole upsell program, and card checkouts dominate.
- Two rule-based offers after payment are enough; Deploi's post-purchase upsell record scores renting the offer-testing loop BUY while offers are still in testing (October 2026).
- Monthly upsell revenue stays under $15,000 on Optimize, or GemPages confirms in writing that Enterprise pays no commission (Deploi arithmetic from GemPages' published fees).
BuyAdd an upsell app such as Rebuy when
- Cart or product-page cross-sells move your order value, and GemPages' funnel never reaches the cart.
- You want recommendations learned from shopper behavior rather than set by rules.
- You're on Plus and want offers inside checkout, which Rebuy sells as "Shopify Plus exclusive" (Rebuy, October 2026).
Basis: Should You Build or Buy Post-Purchase Upsells on Shopify?, our Build vs. Buy decision record, scored BUY.
Which upsell surfaces does GemPages cover natively, and which need an app like Rebuy?
GemPages covers the post-purchase page natively and part of the product page; the cart and the checkout need an app like Rebuy. GemPages' funnel runs pre-sale and sales pages into Shopify's default checkout, then makes its offers after payment (GemPages Help Center, October 2026). What GemPages is and how its funnel differs from PageFly and Shogun is covered in its own answer.
| Surface | GemPages | Rebuy Personalization Engine |
|---|---|---|
| Product page | Quantity-break bundle discounts on paid plans; related products by collection, vendor or tag | AI recommendations, bundles and cross-sell widgets |
| Cart | None: GemPages can't edit the cart page, and a cart drawer comes from the theme or an app | Smart Cart, a slide-out cart with recommendations |
| Checkout steps | None: GemPages says an upsell offer can't show on the checkout page | Checkout extension offers, Shopify Plus only |
| Post-purchase page | Up to two offers after payment; GemPages' FAQ also says up to three can display | Post-Purchase Offers |
So GemPages replaces Rebuy only where post-purchase offers are the whole upsell program.
Which checkouts never see a post-purchase offer?
Checkouts paid through an installment service, a wallet such as Apple Pay, Google Pay or Amazon Pay, or a gift card never see a post-purchase offer, from GemPages or any other app. Shopify skips the page when a customer pays with "an installment service or a wallet service (such as Klarna, Affirm, AfterPay, Apple Pay, Amazon Pay, or Google Pay)" (shopify.dev, October 2026). Shopify also skips gift card payments, "orders with duties and multiple currencies", local delivery orders and orders outside the Online Store channel. So an international brand loses part of its order base to the rule before any offer is designed.
Can GemPages and Rebuy run on the same store?
GemPages and Rebuy can run on the same store only on different surfaces, because Shopify allows one post-purchase app. Shopify's rule reads: "You can use only one checkout app to add post-purchase features at a time" (Shopify Help Center, October 2026). So one workable split puts Rebuy in the cart and on product pages and leaves the post-purchase page to GemPages. The other uses Rebuy's Checkout & Post-Purchase package and switches GemPages' funnel off.
GemPages sells its funnel with "No extra apps required!" (GemPages, October 2026). Its own testing guide is less absolute: "To maximize results, you can combine GemPages with a one-click upsell app for Shopify" (GemPages Help Center, October 2026). Rebuy Personalization Engine rates 4.7 stars across about 850 reviews on the Shopify App Store (Shopify App Store, October 2026). Whether a recommendation engine lifts order value enough to pay for itself is its own answer.
What does GemPages' post-purchase funnel cost against Rebuy?
GemPages' post-purchase funnel costs a commission on upsell revenue, while Rebuy costs a fee per package that scales with order count. GemPages' Optimize plan, $59 a month, charges "a fee of $10" for "every incremental $1,000" of upsell revenue past the first $1,000 each month. GemPages' help center says Enterprise, $199 a month, charges none, and that the commission is "non-refundable, regardless of any refund requests made by customers" (GemPages Help Center, October 2026).
| Post-purchase upsell revenue a month | Optimize: plan plus commission | Enterprise |
|---|---|---|
| $1,000 | $59 | $199 |
| $5,000 | $99 | $199 |
| $15,000 | $199 | $199 |
| $50,000 | $549 | $199 |
Rebuy prices each package by monthly orders, from $25 a month for one package (Rebuy, October 2026). So Rebuy's bill follows order count, and GemPages' bill follows offer revenue. Check either app's claims against Shopify's orders, because third-party pixels "report only the purchase event and value for the initial purchase" (shopify.dev, October 2026).
When is GemPages' funnel enough without a separate upsell app?
GemPages' funnel is enough without a separate upsell app when post-purchase offers are your whole upsell program and card checkouts dominate.
Deploi’s point of view
Our own position, from building on Shopify. Kept apart from the sourced facts above.
- What we’ve seen
- Post-purchase offer performance is usually reported without the denominator. The offer converts well among the customers who saw it, and the report rarely says how many orders never reached the page.
- Where we disagree
- "No extra apps required" is the standard claim for bundled funnel features across this category, and it is true only for the surface the builder happens to own. The useful question is never how many apps you can remove. It is which of the four surfaces actually moves your average order value, and then which product owns that one.
- What we ask for first
- Offer impressions as a share of orders, before anyone celebrates a conversion rate. In our judgment, the orders that skip the post-purchase page are where these business cases go wrong.
- What this page adds
- The parent says GemPages' funnel ends in a post-purchase offer; this page maps all four upsell surfaces against Rebuy, the Shopify rules that skip the post-purchase page or allow one app on it, the disagreement between GemPages and Shopify on Shop Pay and PayPal Express, and where Optimize's commission passes Enterprise's flat fee.
Decision records behind this answer
When this answer changes
- GemPages changes its post-purchase commission, or the $100 monthly cap on Free and Build.
- GemPages or Shopify changes its list of payment methods that reach the post-purchase page.
- Shopify allows more than one post-purchase app, or takes post-purchase extensions out of beta.
- GemPages adds cart or checkout offers to its funnel.
- Rebuy changes how it prices its packages.
Related questions
This follows from What is GemPages, and how is it different from a plain page builder like PageFly or Shogun?
- Does AI-powered product recommendation (upsell/cross-sell apps) actually lift AOV meaningfully for a mid-market catalog, or is that overstated?
AI product recommendation apps have no public average order value (AOV) lift range for mid-market Shopify catalogs (Deploi search, October 2026), so any AOV percentage stays unproven until your own holdout test confirms it.
- PageFly vs Shogun vs Replo vs GemPages: which one is actually best specifically for funnel-style landing pages?
Replo and GemPages lead the Shopify page builders on funnel-style landing pages, and only GemPages runs offers on Shopify's post-purchase page (GemPages docs, October 2026).
- What's a reasonable QA budget or time allocation, as a percentage of total dev time, for checkout testing on a mid-market Shopify Plus store?
Checkout quality assurance (QA) is budgeted by test matrix, not as a percentage of development hours.
Sources
Every figure on this page traces to one of these. Official and vendor pages are checked on the date shown; Deploi records are our own published decisions.
- GemPages Help Center, GemPages Sales Funnel & FAQs
- Shopify Help Center, Customizing your checkout and customer accounts with apps
- Shopify developer docs, About product offers
- GemPages Help Center, GemPages One-Click Post-Purchase: Supported Payment Methods
- GemPages Help Center, Bundle Discount Element
- GemPages Help Center, Related Products Element
- GemPages Help Center, How to Set Up a Shopify Cart Drawer with GemPages
- GemPages Help Center, Sales Funnel Dynamic Offer
- GemPages Help Center, Testing GemPages Upsell Sales Funnel with Shopify Orders & $1 Product
- Rebuy, Rebuy Personalization Engine on the Shopify App Store
- Rebuy, Rebuy Engine Pricing
- GemPages, Shopify Sales Funnel Builder
- Deploi Build vs. Buy, Should You Build or Buy Post-Purchase Upsells on Shopify?