CartWisp

CartWisp, officially listed on the Shopify App Store as CartWisp: Checkout Validation, is a Shopify app in the Cart customization category. CartWisp helps Shopify merchants enforce checkout rules and validation to prevent invalid, non-compliant, and unfulfillable orders before they are placed. Create rules for MOQ, minimum order value, buyer eligibility, product restrictions, shipping controls, payment method limits, B2B checkout, and compliance workflows. Stop fixing bad orders after purchase and reduce refunds, cancellations, manual reviews, fulfillment errors, and compliance issues.

CartWisp offers a free plan and a single paid plan at $5/month. The free plan includes 3 Active Checkout Rules Allowed, Minimum Order Value Enforcement, Control Maximum Quantity allowed per SKU, and Geography-based Checkout Control. The paid plan unlocks advanced features like additional integrations, automations, and deeper customization.

Yes — CartWisp offers a free plan alongside paid options. The free plan includes 3 Active Checkout Rules Allowed, Minimum Order Value Enforcement, and Control Maximum Quantity allowed per SKU. Paid plans start at $5/month for advanced features.

CartWisp launched on May 20, 2026.

CartWisp does not currently carry Shopify's Built for Shopify badge. The badge is awarded to apps that meet Shopify's published standards for performance, ease of use, and merchant value — many high-quality apps operate without it.

Merchants commonly compare CartWisp with Upsell.com, Essential Upsell & Cross Sell, EG Auto Add to Cart Free Gift, and Kaching CartDrawer Cart Upsell. Each alternative covers a similar use case but differs on pricing model, integration depth, and the specific themes merchants praise in reviews — see the alternatives section above for a side-by-side.