netParcel

Started using this app a few days ago with the Canada Post strike on and off shipping has been challenging.
These are the best shipping rates across Canada that we have found so far and are delighted with that. Also, having the orders populate from Shopify is a great time saver and helps eliminate data transfer errors.
I wish the invoicing would calculate a total for the day or week and put a group charge through, versus each individual one - it does make accounting harder.
Give it a go, you will be glad you did.