Makes sense there is a divide in how people like to enact changes like this. For me, the mental shift of using yet another app would be more of a headache than just doing it manually in the native app. I've been using the native app for almost 2 decades, have some solid muscle memory through fumbling around with it late at night and early in morning during partial stages of sleep. Learning a new app, changing my muscle memory, honestly just opening it instead of the native app when thinking about alarm will be a big hurdle that I'm not taking on unless this app added more than a minor convenience.

Then there's the problem of discovery, if I wanted to do this, it's so easy I would just do it, manually, with native app. It's such a minor problem, I'd never even look for other solutions.