ShipCalc vs OCT
ShipCalc covers more: product page, cart, and cart drawer, a postcode-only lookup, and quote analytics. OCT is cheaper and adds translation if you sell in several languages.
| Feature | ShipCalc | OCT |
|---|---|---|
| Product page | ||
| Cart page | ||
| Cart drawer | Not listed | |
| Postcode only, no address form | Uses geolocation and address fields | |
| Uses your Shopify rates as-is | ||
| 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, OCT $6.99/month. Checked 21 September 2026.
Choose ShipCalc if
Choose ShipCalc for product, cart, and compatible drawer placement with quote analytics and marketing-event support.
Choose OCT if
Choose OCT when geolocation, translation, multi-currency support, Built for Shopify status, or the lower monthly price is more important.
Full comparison
For most stores that want shipping shown before checkout, ShipCalc is the stronger choice. It works on product pages, cart pages, and cart drawers; shoppers type just a postcode; and every quote shows up in your analytics and, optionally, GA4, GTM, and Meta Pixel. OCT also shows rates on product and cart pages and costs less ($6.99 vs $9.99 a month), and it adds translation and multi-currency options. Pick OCT if a multilingual storefront matters more to you than cart drawer support and quote measurement.
Where can each calculator appear?
Both public listings state product-page and cart-page support. ShipCalc additionally states support for compatible cart drawers, which matters when a theme keeps shoppers in a slide-out cart rather than sending them to a full cart page.
Theme behaviour should always be tested on the live theme. Cart drawers vary widely, and a theme update can change the element a widget needs to target.
How do localisation features compare?
OCT lists browser geolocation, automatic address population, translation, and multi-currency support. ShipCalc lists an international country selector and works with the markets and zones configured in Shopify, but its current App Store language is English.
How do analytics differ?
ShipCalc lists quote usage analytics by postcode and optional calculation events for GA4, GTM, and Meta. Those features make the widget useful as both a shopper utility and a measurement point. Comparable analytics and marketing-event features are not stated on OCT’s public listing.
Ratings: ShipCalc 5.0 (1 review), OCT 4.5 (22 reviews). Facts from public Shopify App Store listings, checked . See the OCT listing . ShipCalc publishes this page.
Questions
Is OCT cheaper than ShipCalc?
Yes. The public listings show OCT at $6.99/month and ShipCalc at $9.99/month as of 21 September 2026.
Which app supports product-page rates?
Both ShipCalc and OCT publicly state product-page and cart-page shipping rate support.
Which option is better for analytics?
ShipCalc is the clearer fit when quote activity and optional GA4, GTM, or Meta events are required.
Test it on your own theme and rates.
Questions first? Talk to us.
- 14-day free trial
- No theme code