Flow shows your biorhythm: three waves for body, feelings and mind, all starting on the day you were born. Where are you today, and which day this month looks best?
iPhone · In Dutch · Private testing

Body runs in 23 days, feelings in 28, mind in 33. Every day you see where each one is, and whether it's on its way up or down.
Flow looks a month ahead and picks the day where everything lines up best.
Drag across the chart to check any day, from a week back to three weeks ahead.
Fill in a name and a birthday and see how much you're on the same wavelength. One payment of €0.99 and you can add as many people as you like.
Short facts about where biorhythm came from, from Berlin around 1900 to the pocket calculators of the seventies.
Prefer it plain? Switch the waves to white and grey, each with its own line pattern.
Let's be honest: biorhythm has no scientific basis. Flow says so itself and is meant just for fun. No ads, no tracking, no internet needed: birthdays stay on your iPhone. It isn't in the App Store yet.