The problem
Breathing drills are simple, but counting phases while trying to relax rather defeats the point.
What it is
When you swim — especially when you are not used to it — the first alarm is often CO₂ buildup rather than a lack of oxygen.
This guided timer makes it easy to practise a repeatable inhale, hold, exhale and hold cycle without watching a stopwatch.
The approach
A distraction-free visual timer with adjustable phases, rounds and clear state changes.
What I learned
I built this for 2 weeks pre-ai, and now its a one-shot prompt.
Built with