Supplementing First Aid for Immunology and Microbiology with board review apps challenges you to review a variety of content.
Because microbiology involves reviewing virology, mycology, parasitology, bacteriology, and immunology, choosing the right study resource is pretty important. Students should complement books with resources such as Medical Microbiology Made Ridiculously Simple or First Aid for the USMLE Microbiology app on Android which features 400+ questions as flashcards written by medical students.
As an alternative, the Case Files Microbiology app by Lange on iTunes has high-yield cases that provide tips on studying and high yield content for clerkships and to help increase shelf-exam scores. USMLE-Rx features the Step 1 Flash Facts series. Some of the unique features present in the USMLE-Rx app include short answer questions, fill-in-the-blank, and T/F questions; and a Leitner mode for retesting wrong cards until you answer them correctly.
Use demos of the apps to select the right app matching your study method and goals.