You will not be able to use our Rates features without the Carrier Service API - all all other functionality is available. To add the Carrier Service just get in touch with Shopify. They’ll add it to your plans for $20/month, and it’s free with an annual plan.
Yes, indeed! We offer a 14-day free trial, so you can check the app suits your workflow and does what you need. Cancel within that time and you won’t be charged.
The app works everywhere that Shopify does.
By charging a minimal transaction fee we are able to accommodate businesses of all sizes from small startups to multi-national corporations.