Works great 
I know this is an old thread, but I’ll offer my two cents in case anyone needs the help. If the smaller solutions aren’t appropriate, you could also look at a solution like Starshipit (which is basically a more fully featured shipping automation platform). Addressing the specific problem outlined here, you could use the rules engine to account for where and when the promotion is applied. Good luck!
Hi! So your app will make it so that if I offer free shipping at $100 it will only give the customer the least expensive shipping option free instead of how Shopify has all options for free?
Hi @Scovert
Yes with Advanced Free Shipping you can select the exact shipping method you would like for the shipping discount 
So I want to do free shipping at $100 but exclude digital items or anything that is on sale from going towards that $100, is that possible with your app?
Hi @Scovert
Yes it is, you can use the ‘Cart Has Items’ conditional.
Perhaps create a collection that has all products that are not digital, and then target this inside the ‘Cart Has Items’ rule.
Thanks,
Hey @RMedia ,
I love the app, but here’s a bit of feedback from a frustrated store owner who needs 3 apps to correctly show shipping:
App 1: Shipping rules. Because I have different types of products (media mail eligible, non media mail eligible, and digital), I need an app to show shipping rates based on cart/product conditions.
App 2: Your app to now apply a discount only to physical products and only to our economy rates (thanks!)
App 3: A separate app to show a free shipping graph/bar to the customer.
I haven’t even figured out app 3 yet because I’m not sure there are free shipping bar apps that have the same logic as what I created in your app. So my question is, do you have plans in the future of incorporating all this functionality to make it seamless? My shipping rules app uses the exact same logic as your shipping discount app. And if I want a free shipping bar app, it would also need the exact same logic as your app. Seems like where I will have 3 apps, 1 could do the same work with 90% of the UI being the same.
Hi @mnearents
These are great suggestions, and we do get quite a few requests for a free shipping bar integration…
I will definately look into this in future updates. Appreciate the feedback
Hi,
I know this is old thread, but since this question comes up still for many shopify merchants. I want to share a soluiton that directly addresses it.
If you’re looking to offer free shipping for specific shipping methods (like Standard Shipping) while still allowing others (like Express Shipping) to be selectable with their regular rates , our app might be exactly what you need.
We created it because this is a basic need that really shouldn’t require upgrading to expensive Shopify plans or using workarounds.
Our app Single Code Discount by Swiftbee is built to:
Let you offer free shipping only for selected methods
Combine order and sipping combinations and many more advanced shipping combinations.
we believe basic requirements shouldn’t come with high costs. It’s simple, lightweight, and focused only on solving this issue