This is one of the cases where I do think AI development is handy. There are loads of simple apps (like in your example, an alarm with custom sounds) that someone could crank out if they take a couple weeks to learn some frameworks and a language. Or they could get some ad-filled slop app from the App Store that'll harvest their personal data and send it off to some foreign intelligence agency to spy on them and share it with spammers. Neither option is appealing to most people.

But AI can churn it out in a few minutes, and a human can go in to tweak things manually to their needs.

I recently did it with a little audio editing app. I needed something to edit sound effects for a game in a specific way. Learning about audio programming and whatever would've taken me a lot of time, and I put it off forever since even figuring out where to begin was a hassle. I asked an AI to make a basic app that did what I wanted and I put on a few finishing touches. Took about 10 minutes and works fine for my purposes.