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Fixpoint One

Shopify apps that do one thing perfectly.

Cart Shipping Calculator shows real shipping rates in the cart so shoppers see costs before checkout and fewer checkouts get abandoned.

Frequently Asked Questions

Does Cart Shipping Calculator work with my theme?

Yes. It’s designed to work automatically with most Shopify 2.0 themes without requiring edits.

Do I need to add any code or make theme changes?

No. The app installs as a Theme App Extension. After you enable it under App embeds in your theme, it appears in the cart without any code edits or Liquid changes.

Can shoppers enter their own ZIP or postal code?

Yes. The app auto-detects a shopper’s region, but they can also enter their ZIP or postal code manually if needed.

Does it support international postal codes?

Yes. Cart Shipping Calculator recognizes postal and ZIP codes from nearly every Shopify-supported country — including the United States, Canada, the United Kingdom, Australia, the EU, Brazil, South Africa, and more. It automatically adapts to each store’s base region for accurate rate lookups worldwide.

Does it slow down my cart?

No. It runs entirely client-side and only fetches shipping rates directly from your Shopify store’s API, keeping the cart fast and responsive.

Is any customer data stored?

Never. All lookups are transient, privacy-safe, and fully compliant with Shopify’s GDPR and uninstall policies.

How does billing work?

The app includes a 14-day free trial managed by Shopify Billing. Charges begin automatically after the trial unless the app is uninstalled before that date. All billing is handled securely through Shopify — no separate payments are required.

Who develops Cart Shipping Calculator?

Cart Shipping Calculator is built and maintained by Fixpoint One — a Shopify Partner focused on simple, reliable apps that solve one problem perfectly.