How to design attractive prices and promos ... looking for some feedback on an app idea

It looks like a lot of shops need help designing prices/promos that are competitive yet still profitable.

For instance, $1000 shoes would have high margins but no sales, while $0 shoes would have no margins but gobs of sales. No profits either way, so the “right” answer is somewhere in between…

We’re working on an app (https://apps.shopify.com/dash) that analyzes your past sales and promos and then recommends better ones to increase profits. May we have some feedback, please? ($5 for early users.)