The Cryptozoologists Field Guide is an Android app developed by Nowhere Fast Development. It is a free app in the Lifestyle category that provides a comprehensive list of Cryptids that are thought to be active in the lower 48 states of the USA. The program is organized according to the regions where they are active.

Cryptozoology is the study of animals and creatures whose existence has not yet been proven. These creatures are known as Cryptids, and the app provides information on creatures ranging from bipedal beasts like Bigfoot to Lake Monsters like Champ and Tessie to the paranormal Pukwudgie. The app is designed to be an entertaining way to explore the possibility of these creatures' existence.

Navigation is straightforward, and the information is presented in a clear and concise manner. However, the app is not optimized for tablets. It is essential to approach the app's information with an open mind but also with healthy skepticism.

Overall, the Cryptozoologists Field Guide is an informative and entertaining app for those interested in the possibility of Cryptids' existence in the USA.