Diccionario de demonios is a demonological dictionary available only in Spanish. The app is developed by appgratispati and is available for free on Android devices. It is an educational and reference app that provides a comprehensive list of demon names from A to Z in all existing cultures, including Lucifer, Satan, Azrael, Leviathan, and other evil demons and angels.

The app is designed for those who are interested in demonology and want to learn more about the underworld. It provides a complete list of demon names, their origins, and their characteristics. The app is easy to use and provides a user-friendly interface. It is an excellent resource for those who want to learn more about demonology and the dark side of the spiritual world. However, it is important to note that the app uses device identifiers to personalize content and ads, which may be a concern for some users.