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Bristm Checkout Customizer
by Bristm LLP
AddUp helps you customize Shopify checkout with rules, discounts, upsells, shipping and payment controls, validation, and branded experiences.
5.00(3 reviews)· Free plan available. Free trial available.· Launched May 1, 2023
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AddUp helps you customize Shopify checkout with rules, discounts, upsells, shipping and payment controls, validation, and branded experiences.
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Data last refreshed Oct 20, 2026. Source: Shopify App Store.