# Checkout for Shopify stores running ads · CheckoutScale > Source: https://checkoutscale.com/best/shopify-custom-checkout ## Which checkout to use when Shopify ads sell one product Your ads send people to one Shopify product, and the store checkout is still built for browsing the catalog. Keep Shopify Checkout if shoppers browse many products and a lot of them pay with Shop Pay. Use a sales funnel builder when the ad sells one offer and you need your own checkout, an order bump, and a one-click upsell, while Shopify can still ship the order. By [Marcus Reyes](/authors/marcus-reyes), Editor. Published 15 October 2026. Run your monthly revenue through the [checkout cost calculator](/best/checkout-cost-calculator-what-each-platform-costs-at-your-monthly-revenue) before you add another subscription. Prices below come from each company's website. Before judging a checkout I read what merchants have said in public threads, as the [research method](/methodology) describes. ### Why a store theme gets in the way of an ad A normal store theme shows menus, collections, and other products. The ad promised one offer, so the click should open that offer and then a checkout. [Shopify's pricing table](https://www.shopify.com/pricing) lists checkout customization as Limited on every plan below Plus. Plus is the plan with a fully customizable checkout. Sellers who want a different checkout layout, an order bump on that screen, or a test of the checkout itself end up on Plus, or on a checkout built outside the theme. Read [Shopify Checkout vs a custom checkout](/compare/shopify-checkout-vs-custom-checkout) for how those two setups differ. ### Keep Shopify Checkout for a catalog Shop Pay is why a catalog store keeps the default checkout. [Shopify's checkout page](https://www.shopify.com/checkout) says Shop Pay can recognize a returning buyer by email or device, then take payment in one tap. That is worth keeping when the same customer comes back for another product. Image: shopify.com #### Shopify Checkout Prices read 15 Oct 2026 Below Plus Checkout customization is Limited Plus Fully customizable checkout Third-party fee 2% when Shopify Payments is off Shop Pay One tap after an email or device match Vendor capacity Up to 40,000 checkout starts per minute Vendor study 15% higher on average, April 2023 [See the product page](https://www.shopify.com/checkout) Shopify also cites an April 2023 study, done with a large consulting firm, comparing its conversion rate with other checkouts. It also states how many checkout starts one store can handle. Both numbers come from Shopify. Neither has an independent study behind it. The same page lists post-purchase pages, tracking pixels, and extra checkout fields as Plus features. People posting on [r/shopify](https://www.reddit.com/r/shopify/comments/1px1dxz/how%5Fdo%5Fyou%5Foptimize%5Fyour%5Fshopify%5Fcheckout%5Fprocess/) say a one-click offer after payment raised average order value more than a heavy upsell inside the checkout. On a catalog store, that later offer adds to the order, and Shop Pay still takes the payment. If you keep Shopify's own checkout, start with the [Shopify Checkout review](/reviews/shopify-checkout). ### A Shopify sales funnel builder beside the store When the ad promotes one main product, the landing page and the checkout can live outside the theme. Shopify can still hold the catalog and ship the order. Image: funnelish.com #### Funnelish Prices read 15 Oct 2026 Basic $49 a month, 20,000 visitors Pro $99 a month Advanced $249 a month Commission No commission on sales With a store Keep the Shopify catalog, or sell without a store plan [See the product page](https://funnelish.com/funnelish-for-shopify) [Funnelish's Shopify page](https://funnelish.com/funnelish-for-shopify) says you can keep Shopify for the catalog, or run the funnel with no Shopify subscription. It leads with native upsells on a custom checkout. The cheapest plan includes a visitor cap. Match that cap to your monthly ad traffic before you choose the plan. [Funnelish's pricing page](https://funnelish.com/pricing) says the company does not charge a commission on sales. One comment on [r/shopify](https://www.reddit.com/r/shopify/comments/1lw5h9d/using%5Fan%5Fexternal%5Fcheck%5Fout%5Finstead%5Fof%5Fshopify/) says third-party checkouts are no longer allowed, and that Shopify may suspend the store. That is one merchant's report. If you use a funnel, point the ad at the funnel URL, and keep the theme checkout for people who browse the store. ### Checkout Champ for higher order volume A store with a lot of orders needs the checkout, the offers, and the customer record in one system. Shopify can still pack and ship the order. Image: checkoutchamp.com #### Checkout Champ Prices read 15 Oct 2026 Growth $300 a month plus 1% of sales Shopify Works with Shopify stores Offers Order bumps before payment, one-click after Tests A/B/C split testing on those offers [See the product page](https://www.checkoutchamp.com/pricing) [Checkout Champ's homepage](https://www.checkoutchamp.com/) says its funnels and custom checkout work with Shopify, and also with BigCommerce, WooCommerce, and Magento. The same page lists pre-purchase order bumps and one-click upsells, with A/B/C split testing. Read the [checkout split testing guide](/best/checkout-split-testing) before you test a whole checkout on a live ad. For a longer look at the order platform, read the [Checkout Champ review](/reviews/checkout-champ). ### A Shopify checkout alternative with no store subscription Some products do not need a Shopify subscription. The sale happens on a hosted payment page. Image: samcart.com #### SamCart Prices read 15 Oct 2026 Pro $199 a month Included on Pro One-click upsells and order bumps Pages Hosted by SamCart [See the product page](https://www.samcart.com/pricing) [SamCart's pricing page](https://www.samcart.com/pricing) puts one-click upsells and order bumps on Pro, for pages SamCart hosts. Use it when the product is sold on those pages. Plans, bumps, and processors are spelled out in the [SamCart review](/reviews/samcart). Funnelish can also run with no Shopify subscription. Its Shopify page includes a standalone funnel. SamCart hosts the payment page for a digital product sold there. That standalone funnel keeps landing pages around the offer, and it does not need a Shopify plan. ### Bump first, one-click after A sales funnel builder puts the landing page and the checkout on one path. On a Shopify upsell funnel, the order bump sits on that checkout, and the one-click upsell charges after the buyer has paid. Checkout Champ lists the bump and the one-click upsell as two offers, and it can split-test them. SamCart includes both on Pro. The bump is a box on the form the buyer completes. The one-click upsell is the next page, and it charges the card the buyer already entered. In the r/shopify thread linked above, merchants said that later page raised average order value more than several upsells on the checkout form. The [order bump and upsell revenue calculator](/best/order-bump-and-upsell-revenue-calculator) turns those two offers into added revenue per 1,000 orders. The [custom checkout review](/reviews/custom-checkout) covers running your own checkout. ### Fees on top of the Shopify plan You still pay for Shopify if the store stays open. The plan table adds a third-party transaction fee when Shopify Payments is not the processor. Funnel tools charge as well. Funnelish says it takes no commission on a sale. Checkout Champ Growth adds a percentage of sales processed on the platform to its monthly fee. SamCart puts the bumps and the one-click upsells on Pro. The ad has to point at the funnel URL. If Shopify still ships the product, the order has to reach the store. Put both the store plan and the funnel plan into the calculator linked at the top before you move a live ad. ### My take For cold ads that sell one product, I would use a checkout built outside the store theme. I would start with Funnelish when Shopify still holds the catalog and ships the order. Checkout Champ is the heavier option when bumps, upsells, and split tests sit in the same system as the orders. A catalog whose returning buyers pay with Shop Pay should stay on Shopify Checkout, with the extra offer on the order confirmation page so those buyers can still use Shop Pay. With no Shopify store and a digital product, SamCart's hosted page is enough. ### Your next step Enter your monthly sales in the [checkout cost calculator](/best/checkout-cost-calculator-what-each-platform-costs-at-your-monthly-revenue). Then pick the plan that includes the order bump or the post-purchase offer. The other guides are linked from [Best of](/best). ### Questions sellers ask #### Can a funnel replace the theme checkout? Point the ads at the funnel URL, and leave the theme checkout for people browsing the store. Replacing Shopify's own checkout with an outside one is what that merchant comment says can lead to a suspension. Funnelish and Checkout Champ both say their checkouts can run with a Shopify store. #### Do you need Plus to add an upsell? Shopify Plus is the plan with a fully customizable checkout, and the checkout page puts post-purchase pages on that plan. An offer on Funnelish, Checkout Champ, or SamCart uses that company's checkout, on the plan shown on its card. #### How is an order bump different from a one-click upsell? An order bump is an extra item on the checkout form, chosen before the buyer pays. A one-click upsell charges again after that payment, on the card already used. Merchants in the thread above said the second charge raised the order total more than upsells placed on the form. #### Will Shopify show the order? Funnelish can keep Shopify as the catalog, or sell with no Shopify plan. Checkout Champ says it works with Shopify stores. SamCart's pricing page describes checkout pages that SamCart hosts. ### Sources * [Shopify pricing](https://www.shopify.com/pricing) * [Shopify Checkout](https://www.shopify.com/checkout) * [Funnelish pricing](https://funnelish.com/pricing) * [Funnelish for Shopify](https://funnelish.com/funnelish-for-shopify) * [Checkout Champ pricing](https://www.checkoutchamp.com/pricing) * [Checkout Champ](https://www.checkoutchamp.com/) * [SamCart pricing](https://www.samcart.com/pricing) * [r/shopify thread on an external checkout](https://www.reddit.com/r/shopify/comments/1lw5h9d/using%5Fan%5Fexternal%5Fcheck%5Fout%5Finstead%5Fof%5Fshopify/) * [r/shopify thread on checkout offers](https://www.reddit.com/r/shopify/comments/1px1dxz/how%5Fdo%5Fyou%5Foptimize%5Fyour%5Fshopify%5Fcheckout%5Fprocess/) Written by Last checked 2026-10-20 --- We rank the platforms that build the pages and host the checkout for teams running paid traffic: order bumps, one-click upsells, split-testing whole checkouts, different checkouts per traffic source, and payment routing for high-risk verticals. 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