Discover what truly influences your day
Is today a good day to make decisions? Why do you feel exhausted – or full of energy? Our biorhythm analysis reveals how physical, emotional, and mental cycles shape your mood and relationships.
Calculate your biorhythm online for free!
Calculate your personal biorhythm here - free of charge, without registration. Our analysis takes into account emotional, mental, intuitive and physical cycles and shows you your current strengths and weaknesses.
Find the most comprehensive possibilities for analysis and prediction of all known biorhythms.
Featured case studies
Daily Biorhythm Analysis
Get a comprehensive overview of 13 individual biorhythm values – from intuition and mentality to physical energy. Discover your daily strengths, critical phases, and personalized recommendations for more balance and clarity in everyday life.

Biorhythm Harmony
Find out how well you align on a biorhythm level. Discover harmonious matches and powerful contrasts – for partnerships, family, or friendship.

Biorhythm Forecast
See how your 13 biorhythm values evolve across the past, present, and future. Identify powerful days, critical phases – and gain insights into how your loved ones are doing or will be doing.

Daily Biorhythm Matching
Discover how well you and your partner align today based on your biorhythm values. See which areas are in sync – and where potential tension or imbalance may arise.
. . . and much more like dashboard, cycle compare, celebrity compare . . .
Log in now for freeCompare your biorhythms
... with that of your loved one

grandma

grandpa

dad
Analyze the biorhythms of friends, relatives or colleagues. Are you in sync or in a complementary phase? Where do you find the most similarities? Click for a sample analysis!
Why does today feel different?
Some days are easy, focused, in flow. Others lack energy, clarity or connection - for no apparent reason.
The biorhythm provides a possible explanation: inner cycles influence how we think, feel and act - often unconsciously.
We analyze all 13 known cycles, far beyond the classic model, and show you what your inner dynamics look like today.
What our users say
I really like this app, it provides much more data than just a graph. I like that you can put more than one profile in it and compare. Find out when is the best time to visit your grumpy old aunt when she is well!
Especially good is the option to specify more people to compare. Helpful to understand behavior and situations with other people, or to understand yourself in this regard. Everyone can "work" individually for himself with it
Thank you for this very detailed, clear and -even for a layman- easy to understand options and analysis. I'm glad this app found me!