Ive used biorhythm software for years. This is the first one Ive seen that didnt use your birthdate and/or similar info to tailor the biorhythms to the individual person. If you try to input such data via Settings, the truth is revealed: you cant get your biorhythm without coughing up some serious cash.
OkieAplUzr about Lunar Calendar & Biorhythm - The Moon Planner, v2.1.4