ShipCalc vs SMART
Different jobs: SMART builds checkout rate rules; ShipCalc shows your rates on product pages, carts, and drawers. Many stores need only ShipCalc.
| Feature | ShipCalc | SMART |
|---|---|---|
| Product page | Checkout-focused | |
| Cart page | Checkout-focused | |
| Cart drawer | Checkout-focused | |
| Postcode only, no address form | Not listed | |
| Uses your Shopify rates as-is | You build rate rules in the app | |
| Quote analytics | Not listed | |
| GA4, GTM & Meta events | Not listed | |
| Custom CSS | Not listed | |
| 14-day free trial | 7 days |
✓ = listed on the app's public Shopify App Store listing. ✗ No = the listing shows it works differently. ✗ Not listed = the listing doesn't mention it. Pricing: ShipCalc $9.99/month, SMART From $9.99/month. Checked 21 September 2026.
Choose ShipCalc if
Choose ShipCalc when your rates are correct and shoppers simply need to see them earlier.
Choose SMART if
Choose SMART when you need to build or control conditional checkout rates and delivery methods.
Full comparison
ShipCalc and SMART Shipping Rates & Rules are usually complements, not substitutes. ShipCalc displays rates already configured in Shopify on product pages, carts, and compatible cart drawers. SMART creates, filters, combines, hides, sorts, and renames checkout rates using conditions such as product, weight, quantity, postcode, language, and customer tags. Choose ShipCalc when the rate logic already works and the problem is visibility before checkout. Choose SMART when the problem is the logic itself. A complex store may use a rule engine to produce the right rate and a storefront calculator to reveal that rate earlier.
Display layer versus rate engine
ShipCalc is intentionally not a second rule system. It requests the rates the store already has and surfaces eligible options earlier. SMART is designed to define rate behaviour: product conditions, postcodes, dimensions, rate blending, and checkout delivery customisations.
Choosing between them begins by identifying where the problem lives. If checkout is calculating the wrong amount, a display widget does not fix the rule. If checkout is correct but shoppers cannot see the amount until late, a rule engine alone does not solve storefront visibility.
Can the apps work together?
Potentially, yes. ShipCalc’s listing states that it surfaces existing Shopify rates. Compatibility should be tested with the exact rule configuration and theme because third-party rate timing and eligibility can vary by store.
Price and proof
Both products start at $9.99/month on their public listings, although SMART’s Pro plan is higher and enables broader rate creation. SMART has Built for Shopify status and hundreds of reviews; ShipCalc is newer and has a much smaller public review history.
Ratings: ShipCalc 5.0 (1 review), SMART 5.0 (425 reviews). Facts from public Shopify App Store listings, checked . See the SMART listing . ShipCalc publishes this page.
Questions
Does ShipCalc create postcode shipping rules?
No. ShipCalc displays eligible rates. Use Shopify or a dedicated rule engine such as SMART to create the underlying logic.
Can SMART show rates on a product page?
A product-page storefront calculator is not stated on SMART’s current public listing.
Could a store use both apps?
Possibly: SMART can create rates and ShipCalc can surface eligible Shopify rates earlier. Test the exact configuration before publishing.
Test it on your own theme and rates.
Questions first? Talk to us.
- 14-day free trial
- No theme code