From the Shopify app store
If you don't have a Shopify account, you can create one here.
Find Kickflip in the Shopify app store.
Click on Add app, then login to your Shopify store.
Create your Kickflip account and get started free.
Starting by creating your Kickflip account
You can also start by creating your Kickflip account, and then connect it with your Shopify store.