ARDMS SPI Exam Prep is a dedicated app designed for individuals aspiring to become registered Diagnostic Medical Sonographers. The app, developed by Donna Perry, offers over 300 registry-level questions to help Sonographers, Students, and Physicians pass the American Registry for Diagnostic Medical Sonography exam. Users can access a wide range of features such as 120 question mock exams, six specific categories for focused study, and detailed explanations for better understanding of the material.

The app's homepage provides easy navigation with options for Practice Exams, Test Taking Tips, and About section. Practice Exams can be timed or untimed, allowing users to focus on different categories including Elementary Principles, Transducers, Doppler Instrumentation, and more.