Calendario Nahuales Mayas is an Android application developed by Technology RobOne that allows users to know their Nahual or Nawal by entering their date of birth. The app also features a function that displays the corresponding Nahual of the day upon opening.

The app is user-friendly and easy to navigate. Upon opening, users are prompted to enter their date of birth to discover their Nahual. Additionally, the app displays the corresponding Nahual of the day, providing users with daily insights into their spiritual energies. The app's interface is simple and straightforward, with no unnecessary features or distractions.

Overall, Calendario Nahuales Mayas is an excellent tool for those interested in Mayan spirituality and astrology. Its user-friendly interface and accurate results make it a must-have for anyone looking to explore their spiritual energies through the lens of Mayan culture.