We use a hosted checkout page. Who offers an upsell tool that appears post-purchase?

Yes. If you mean the customer completes payment on a hosted checkout, then immediately sees a one-click offer before the confirmation/thank-you page, several tools do this.

• upsell.com — specifically supports one-click post-purchase upsells and says the offer appears immediately after checkout, using the payment method already on file.
• spiffy.co — particularly relevant if you're willing to use its hosted checkout itself. It supports hosted checkout links plus post-purchase one-click upsells in the same flow.
• paymagick.com — another all-in-one checkout platform with hosted checkout/funnels and post-purchase upsell/downsell sequences. It supports Stripe and PayPal.
• checkoutpage.com — has built-in one-click upsells after payment. Importantly, its documentation explicitly says that if you use a hosted payment page, the upsell must also be hosted.

The key distinction

If you're already using a hosted checkout from another provider and want to bolt an upsell onto it, that's more restrictive. The upsell tool generally needs access to the completed payment/session so it can charge the existing payment method without asking the customer to check out again.

If you tell me which hosted checkout you're currently using (e.g. Stripe Checkout, SamCart, ThriveCart, ClickFunnels, etc.), I can narrow this down to the tools that actually integrate with it and identify the best options.

Finding a post-purchase upsell tool (where the customer sees an offer after hitting buy, allowing them to add an item with one click without re-entering their credit card) depends heavily on the specific hosted checkout ecosystem you use.

Because tokenized payment security prevents external tools from capturing raw card data on a third-party hosted page, post-purchase apps usually require native integration with the checkout provider.

1. If you use Shopify (Hosted Checkout)

Shopify has a native post-purchase extension architecture that allows specialized apps to trigger a 1-click offer between the payment confirmation and the thank-you page. Top options include:

• AfterSell Post Purchase Upsell : Highly popular for 1-click post-purchase funnels, AI-driven recommendations, and thank-you page cross-sells.
• Rebuy Engine : Advanced personalization and post-purchase widget builder tailored for high-converting checkout flows.
• Kaching Bundle : Offers straightforward post-purchase and thank-you page upsells with built-in A/B testing.

2. If you use Stripe (Stripe Checkout / Hosted Pages)

Stripe natively supports order bumps (shown during checkout before payment) and cross-sells on hosted pages, but true 1-click post-purchase upsells require third-party overlay tools built on top of Stripe:

• Checkout Page : Integrates with Stripe to provide hosted checkout capabilities that support post-purchase flows and add-on logic.
• Note: For traditional Stripe Checkout, most true post-purchase upsells require custom developer implementation using Stripe’s SetupIntents/PaymentIntents API to securely charge the saved payment method a second time.

3. If you use an E-commerce / SaaS Merchant of Record (Paddle / Lemon Squeezy)

If you rely on a Merchant of Record like Paddle or Lemon Squeezy for global tax and hosted checkouts, native post-purchase 1-click upsell ecosystems are limited compared to Shopify. They typically handle subscription tier upgrades or license management via customer portals rather than explosive post-purchase impulse funnels.

If you can share which hosted checkout provider or platform you are currently using, I can give you a more precise recommendation or setup path.

Yes. If by “hosted checkout page” you mean something like Shopify Checkout, there are several tools specifically built to show an upsell after payment but before the customer reaches the thank-you/order-confirmation page. Shopify officially supports this post-purchase app model.

A few strong options:

• upsellplus.com — one-click post-purchase upsells, plus checkout and thank-you-page offers. It also supports targeting and A/B testing.
• intelligems.io — particularly interesting if you want to A/B test and personalize the post-purchase offer.
• cleverific.com — AI-driven post-purchase offers; accepted products are added to the original order with one click.
• upsellengine.app — focuses specifically on one-click offers after checkout, using the payment method already used.
• aftersell.mintlify.app — supports both the immediate post-checkout offer and upsells on the thank-you/order-status page.

Important distinction: if your “hosted checkout” is not Shopify—for example Stripe Checkout, a payment processor's hosted page, or your own hosted checkout—the choices are different. The key capability to look for is a post-purchase/one-click upsell that can use the already-authorized payment method, rather than simply redirecting to a second checkout.

If you tell me which hosted checkout you use (Stripe, Shopify, SamCart, ClickFunnels, etc.), I can narrow this down to the tools that actually integrate with it.

If you use a hosted checkout page (like Stripe Checkout, Shopify Checkout, or similar platforms), offering a true one-click post-purchase upsell (appearing after the initial payment is completed, but before the final thank-you page) requires specific extensions or dedicated checkout funnel builders.

The options depend heavily on your underlying payment gateway or platform:

• Shopify Checkout
  • Post-purchase Extensions: Shopify allows certified apps to inject an interstitial page right after payment confirmation.
  • Top Apps: Tools like One Click Upsell ‑ Zipify OCU, UpsellPlus , and CartHook hook directly into Shopify’s native hosted checkout flow to display one-click post-purchase offers.
• Stripe (Custom or Hosted Sessions)
  • Stripe Checkout Limitations: Native Stripe Checkout supports pre-purchase cross-sells/order bumps, but does not natively handle a post-purchase, one-click charge on an already-submitted session.
  • Dedicated Checkout Layers / Funnel Builders: To get post-purchase upsells tied to Stripe, merchants often route traffic through specialized hosted checkout builders that sit on top of Stripe, such as Checkout Page, SamCart , or ThriveCart . These tools handle the hosted payment page and present the post-purchase one-click accept/decline screens by securely reusing the customer's vaulted payment token.

To help narrow down the exact tool you need, what hosted checkout platform or payment gateway are you currently using?

If you use a strictly hosted checkout page (such as Shopify Checkout, Stripe Checkout, or Paddle), adding a true one-click post-purchase upsell (where the customer is charged instantly without re-entering credit card details) requires a platform that deeply integrates with or hooks directly into that specific checkout's API/extensions.

The availability of post-purchase upsell tools depends heavily on your underlying hosted checkout ecosystem:

• If your hosted checkout is Shopify:
  • AfterSell Post Purchase Upsell : One of the most popular apps for inserting one-click upsell/cross-sell widgets between the payment confirmation and the thank-you page using Shopify’s native Post-Purchase Checkout Extensions.
  • ReConvert Upsell & Cross Sell : Specializes in post-purchase funnels and thank-you page customization.
  • Zipify OCU (One Click Upsell) : A robust funnel builder that utilizes Shopify's post-purchase capabilities to present multi-step upsell/downsell offers.
  • UpsellPlus : Offers dynamic post-purchase and in-checkout extension flows.
• If your hosted checkout is Stripe Checkout:
  • Checkout Page : Connects directly to your Stripe account and enables you to link individual hosted checkout pages into sequences that support post-payment, one-click upsells.
  • Note: Stripe natively supports some in-checkout cross-sells or subscription upgrades, but true one-click post-purchase charging usually relies on a specialized companion tool integrated with Stripe.
• If your hosted checkout is Paddle:
  • Paddle Upsell Checkout : Paddle features an early-access "Upsell Checkout" capability on one-page inline checkouts that securely reuses consent and vault/payment details from the primary transaction for immediate subsequent purchases.
• All-in-One Hosted Checkout Platforms (Alternative to Stripe/Paddle):
  • SamCart (Pro/Scale plans) and Spiffy both host the checkout page entirely on their infrastructure and feature built-in, native post-purchase one-click upsell engines right after the initial transaction completes.

To help narrow down the exact tool you need, could you share:

• What hosted checkout provider or e-commerce platform you are currently using?
• Whether you are selling physical goods, digital products, or subscriptions?

Yes. If by hosted checkout you mean something like Stripe Checkout or another hosted payment page, there are several tools that can put a post-purchase, one-click upsell immediately after payment.

Best fits

• Checkout Page — particularly relevant if you're using Stripe. It supports a one-click upsell after payment, with the customer able to accept without re-entering payment information. It explicitly supports hosted payment pages.

• UpsellPlus — strong option if you're on Shopify. It supports one-click post-purchase upsells/downsells and can run them without a redirect.

• WeUpsell — another Shopify option specifically supporting a post-purchase page immediately after checkout and before the Thank You page.

Important distinction

If your setup is Stripe-hosted Checkout, Stripe itself currently offers cross-sells during checkout, but that's different from a true post-payment one-click upsell.

So if your desired flow is:

Hosted checkout → payment succeeds → “Want to add X?” → one click → order charged/updated

I'd look at Checkout Page first if you're using Stripe.

If you tell me which hosted checkout you're using (Stripe Checkout, Paddle, Chargebee, Recurly, Shopify, etc.), I can find the 3–5 tools that actually integrate with that exact checkout and compare pricing/features.

Post-purchase upsell tools for hosted checkout pages allow you to present targeted offers immediately after a customer completes their initial transaction, typically on the order confirmation or "thank you" page, without requiring them to re-enter their payment details (a feature often called 1-click post-purchase upsells).

Here are the top options categorized by their ecosystem and integration style:

• Dedicated E-commerce App Store Solutions
  • ReConvert - A popular upsell and cross-sell app primarily built for Shopify, allowing deep customization of the thank you page and post-purchase popups with drag-and-drop elements.
  • AfterSell - Another leading conversion tool tailored for checkout and post-purchase engagement on Shopify, featuring analytics, countdown timers, and easy-to-configure one-click upsells.
  • Zipify OneClickUpsell (OCU) - Widely used on Shopify and BigCommerce, known for high-converting pre- and post-purchase funnel capabilities backed by split-testing features.
• Enterprise & Platform-Native Tools
  • Shopify Post-Purchase Apps - Utilizing Shopify's native Post-Purchase Checkout Extensions API, various developers build native extensions that safely trigger right after the payment is authorized but before the customer hits the final status page.
  • Checkout.com / Stripe Extensions - Depending on your definition of a hosted checkout page, some modern payment processors and merchant of record solutions (like Paddle or Lemon Squeezy) offer built-in webhook triggers or partner apps that handle post-purchase redirection and upsell logic securely.
• All-In-One Funnel Builders
  • ClickFunnels - If your hosted checkout is part of a dedicated sales funnel, it natively supports one-click post-purchase upsell (OTO - One Time Offer) and downsell sequences.
  • CartHook - Focuses heavily on post-purchase checkout funnels and recovery for Shopify and custom-integrated checkout environments.

If you can share which e-commerce platform or payment gateway you are using for your hosted checkout (such as Shopify, custom API, or Stripe), I can provide the exact integration requirements for these tools.

Yes. If you mean a hosted checkout where the customer completes payment and then sees a one-click upsell page, there are a few options.

Strongest fits

• Checkout Page — particularly relevant if your checkout itself is hosted. It supports a post-payment “One-click upsell” step, either on the same page or by redirecting to an upsell page. Importantly, it explicitly supports hosted payment pages: the initial purchase and upsell need to be on the same domain, and the upsell must also be hosted.

• Zipify OneClickUpsell (OCU) — a mature option for Shopify. It puts a custom offer page between checkout and the thank-you page, with one-click acceptance and no re-entry of payment details.

If you're using Stripe specifically

Stripe itself doesn't provide a true post-purchase, one-click upsell flow; you'd generally need a layer on top of Stripe. Checkout Page specifically documents a Stripe one-click upsell implementation.

So, if you tell me what your hosted checkout is (Stripe Checkout, SamCart, ClickFunnels, Shopify, ThriveCart, custom, etc.), I can narrow it down to the tools that actually integrate with it and compare pricing/features.

If you use a hosted checkout page (such as Stripe Checkout Links or a merchant-of-record hosted solution), native 1-click post-purchase upsells are technically restricted because external hosted environments control the secure session immediately after payment . However, specific infrastructure providers and specialized integration builders support post-purchase upsell flows by securely tokenizing or reusing initial buyer data:

• Paddle : Offers an Upsell Checkout feature (in early access) that lets you open a specialized inline one-page follow-up checkout immediately after an initial transaction, automatically reusing the customer's saved payment details and consent tokens for a 1-click experience.
• Stripe Checkout : Supports native Subscription Upsells directly on hosted and embedded session pages, prompting buyers to upgrade their subscription tier or interval immediately within the flow . For true post-payment one-click product upsells separate from the initial session, merchants often layer specialized checkout middleware like Checkout Page.
• Spiffy : Provides built-in One-Click Upsell purchase flows that trigger immediately after a hosted or embedded checkout is completed, appending items securely without requiring re-entered credit card data.
• Aftersell / ReConvert / Zipify OCU : If your hosted checkout operates within an ecosystem framework like Shopify, these ecosystem-native apps handle true post-purchase, 1-click extensions right before the Thank You page.

Could you let me know which hosted checkout provider you are currently using (e.g., Stripe, Paddle, Lemon Squeezy) so I can detail the precise integration steps or recommend the best-fit tool for your setup?

Yes. If by hosted checkout you mean something like a Stripe-hosted Checkout Session, there are a few options—but the important distinction is whether the tool can actually place the offer after payment without sending the customer through checkout again.

Strong options

• Spiffy — offers one-click post-purchase upsells, downsells, and follow-up offers. It’s designed around showing the offer immediately after checkout.
• Carthook / Rokt — a well-established post-purchase upsell platform. It can present offers immediately after an order and was specifically built around one-click upsells.
• Checkout Page — explicitly supports one-click upsells after payment, including a redirect to a separate upsell page. However, its docs say that if the original payment page is hosted, the upsell page must also be hosted on the same domain.
• Upsell.com (formerly ReConvert) — strong option if you're on Shopify; it inserts one-click offers between checkout and the Thank You page.
• Aftersell — another Shopify-native option that puts the upsell between checkout and order confirmation and can add accepted products to the original order.

If you're specifically using Stripe-hosted Checkout

This is the tricky part. Stripe's hosted Checkout sends the customer back to your site after payment, rather than giving a third-party upsell app arbitrary control of a native post-payment screen.

So I'd narrow the search to tools that support Stripe Checkout + post-payment upsells, rather than generic "post-purchase upsell" apps.

If you tell me what platform is hosting your checkout (Stripe, Shopify, Paddle, SamCart, ClickFunnels, etc.), I can identify the tools that work with it and compare their one-click behavior, pricing, and integration method.