CleanTheAir.co.uk review for Parcelify: Shipping Rates

Excellent app that solves the problem of Shopify's restrictive basic postage calculations. Take your time and read the help guide to learn the functions and how to build the equations that form the postage rules. Give yourself time to master the code and you can make some very specific postage rates that solve the problems of real world courier variations. I've been using this for ages now and won't be without it!