App concept feedback: Home feed and PDP UX for discounts

[pmoose]

Hi all,

We're exploring the value of an app that would trigger on-site UX to advertise discounts when they are available or applied to a user's account. An example would be triggering price strikethroughs on the home feed and product detail page when a user has a discount. We could then also have text showing "X% off with code ABCD". 

Is this something store owners would find helpful? Are there already apps that do something like this?