Rate Lab

Develop by Shopify

$39-$299

/ Month

7 Days Free Trial

"Customize shipping rates effortlessly with Rate Lab's DIY carrier solution."

1 Reviews

9.1

Claim Offer

Install App

About Rate Lab

Launched Oct 16, 2025

Built by Shopify

Address

Leona Czarlińskiego 19, Torun, 87-100, PL

Website Support Portal Privacy policy Tutorial FAQ Document

Claim Offer

Z Sticky Add To Cart Button

Claim Offer

Sponsored

Keep "Add to Cart" visible, boost conversions. No coding...

Description

DIY Custom Carrier Service. Design your own shipping rates using our JSON/liquid editor.

Rate Lab is a DIY Custom Carrier Service solution. You have full control over what rates are returned to checkout. If you're considering a custom carrier service, but don't want to build and maintain a custom app, this is the solution for you.

Take full control of your Shipping Rates with Liquid rate logic
Copy/paste common use cases from our sample library
Available to all Shopify plans

Top Helpful Reviews

Ohio Earth Food Organic Fertilizer

Dec 16, 2025 on Shopify

I am hoping this will solve our problem of saving customers money on shipping by switching from UPS to fright at a certain quantity order. This was a great idea and setup by Pogodan.