Solo maker from Seoul — grew an AI landscape account to 430K, now building a calm quote app

Hi everyone 👋 I'm Yucheol, a solo maker based in Seoul.

For the past 21 months I've been running @wondervisionary — an Instagram account of dreamlike, AI-crafted nature landscapes. It grew from 0 to 430K followers with zero ad spend, and reaches around 18M people a month.

Now I'm turning that into a product: Wonderday, a calm iOS app where you read one good sentence over a beautiful landscape and leave one line of your own. Think "quotes app meets a tiny journal." It's live in 13 languages, and I'm working toward a proper launch here soon.

Question for the community: for those who've launched a wellness or habit app on PH — what do you wish you'd prepared before launch day?

Happy to share anything about growing on Instagram with AI visuals if that's useful to anyone.