Biorhythm

Biorhythm draws the three classic cycles from your date of birth: physical (23 days), emotional (28 days) and intellectual (33 days).

One screen, opening straight on today.

• THREE DIALS
Every cycle has its own colour and dial: the arc sweeps up when the cycle is high and down when it is low, so the sign reads before the number does. An arrow tells you whether the cycle is rising or falling.

• THE DAY'S NUMBER
The three cycles averaged, in large type, with one line saying what it amounts to: a day to spend without saving, a day to take gently, or a day to postpone the decision.

• CRITICAL DAYS
When a cycle crosses zero, the day is marked. That is the least predictable point of the cycle, and Biorhythm tells you before it arrives: the date of the next one is always on screen.

• THE MONTH AROUND YOU
A chart of the three cycles fifteen days either side of the day you are reading. Drag to move through the days.

• AFFINITY
Add someone else's date of birth and see how your cycles line up. Two people born a fixed number of days apart keep the same phase difference for life, so affinity is a single number that never changes.

• ENGLISH AND ITALIAN
The app follows your phone's language.

• NO ACCOUNT, NO SERVERS
No sign-up, no login, no backend. Your date of birth stays on the phone and is sent to nobody. The only data leaving the device is what the ad network collects to keep the app free.

Biorhythm is a curiosity, not a medical or diagnostic tool — it says so inside the app, and it says so here.

Privacy policy: https://mindcontact.app/mcma-biorhythm/privacy/