After 7 years of starting various SwiftUI projects, I’ve finally shipped one. Introducing Apneue.
Apneue is a static apnea training app that lets you train personalized CO₂ and O₂ in a calm, focused environment, with smooth waves rising and falling as you breathe.
It has max-hold testing, box breathing, reminders, stats, and Apple Health integration, plus lots of fun themes and alt icons for a tiny one-time purchase.

