MayanCycles is our first iPad application that demonstrates our love of calendars and calendrical algorithms. Over the decades, there have been many different attempts to understand and align the Mayan Calendar with the Gregorian. MayanCycles contains 16 different interpretations ranging from Robert Willson to Weitzel and Vollemaere that are all user settable. The most famous correlation, the JES Thompson, was never proposed by him, but attributed to him. It is thought by some that this correlation calls for the calendar "ending" on December 21, 2012. MayanCycles dispels that myth and shows that the Mayans love of very large numbers vastly exceeded the equivalent date of December 21, 2012.

This is the Mayan View page, where the user can view the Mayan common Haab month, its Gregorian calendar equivalent, as well as the sacred day name and God on the selected day.

Clicking on the info button reveals a page behind that is context sensitive and explains the glyphs to the user.

This is the Gregorian View page, where the user can view the current Gregorian month with the translated Mayan calendar dates. The user can change the date by changing the Mayan LongCount spinner, clicking on a calendar cell, or making a selection from the month bar above.

Clicking on the info button reveals a page behind that is context sensitive and explains the options to the user.

On the Preferences page, the user can set the which correlation author, the day of week to display the Gregorian calendar, as well as setting the moon display correctly for our southern hemisphere friends.

MayanCycles comes with additional documentation which addresses such topics as Mayan mathematics, what we actually know about the Mayan Calendar, as well as Mayan achievements in the context of other ancient societies.