CheckoutOS

Customize every step of your Shopify checkout — upsells, trust badges, validation rules, payment & delivery customization, branding, and post-purchase offers. All in one app.

• Checkout blocks. Upsells, banners, free-shipping bars, trust badges, custom fields, and more — no theme code needed.
• Payment & delivery rules. Hide, rename, or reorder payment and shipping methods based on cart conditions.
• Post-purchase upsells. One-click offers after payment that add straight to the order — no re-entry of card details.