practice questions, and answers. Many are written by commercial pilots who have worked in the field since the drone pilot test was introduced, and thus bring a wealth of knowledge to the content.
A gouge is a profile of the quirky things a specific DPE is known for asking, or the scenarios they often give an applicant.
FAA Part 107 Remote Pilot Knowledge Test preparation, and useful UAV applications. Every participant will get hands-on experience flying manual and planned UAV flights.