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Protoscience or pseudoscience? You be the judge. Originally formulated in the late 19th century, many biorhythm theories propose that a set of regular oscillating cycles that begin half way between their respective peak and trough on the day of your birth affect your physical, emotional and intellectual stability every time they pass through that midpoint again. These are your "critical days."

The program's Primary display shows a color coded plot of the three "traditional" biorhythms: Physical, Emotional and Intellectual. The Secondary display shows a color coded plot of a person's secondary biorhythms: Mastery, Passion and Wisdom. You can switch between them by pressing the button marked "1 < > 2". Color coded individual values for each biorhythm for the displayed date are shown to the right of the plot. These range from -100% to +100%.

The program calculates and simultaneously displays both Primary and Secondary biorhythms for up to 16 people in your managed "People" list. Reference dates may be either entered explicitly or the display can be scrolled vertically or horizontally to show charts for past and future dates for the rest of the people in your list. For longer time lines the display also works in landscape mode by simply rotating your iPhone.

It's fun to plot your own biorhythms and see if you feel that they reflect perceived changes in your feelings and abilities. Itís also fun to plot the biorhythms of others to see when you are supposed to be "in synch" and if you are supposed to be compatible with respect to one or more of your primary or secondary cycles.

Advanced features:
* Support for you and up to 15 of your friends or family
* Primary and secondary biorhythm cycles
* Ability to easily check dates in the past or future
* Convenient display - portrait or landscape mode