Can I give my customers a free shipping on their subscriptions?

For auto-charging subscriptions, you can set up the free shipping with delivery profiles in our Seal Subscriptions app.
The delivery profiles allow you to set up specific delivery costs which will be applied only to specific auto-charging subscription rules. This means that you just have to create a delivery profile in our Seal Subscriptions app, select the subscription rules on which you want to apply it and set the cost of the shipping to 0.