As a user, if there was a way to get a "pro"/ad-free subscription for free or at a discounted rate for a month or so for an app that I'm not super invested in t

As a user, if there was a way to get a "pro"/ad-free subscription for free or at a discounted rate for a month or so for an app that I'm not super invested in to purchase a subscription for anyway, it would be a good way to get me to submit all my feedback/gripes/etc to the app devs, but that might just be me.