Shopify coupon valid only in the mobile app and automatically applied

[thtro]

I would like to propose a new feature:
A special type of coupon code that can be applied quickly/automatically in the app (without knowing the coupon in advance), so it provides a discount for the Shopify customers that is not available when making purchases via website. (even if that coupon teoretically could be used later on the website, if the customer manually copies it..)

Ideally it would allow the user to apply when it gets to the shopping cart page or by clicking a banner and then a toast notification confirms that the discount its automatically applied to his cart.

Thanks