AMBOSS is described as 'The AMBOSS Qbank app for UMSLE® Step and NBME® Shelf exams is the ultimate exam preparation and study resource for medical students. Dive into thousands of USMLE-style exam questions to enhance your knowledge and prepare for all your exams' and is an app in the education & reference category. There are six alternatives to AMBOSS for a variety of platforms, including Web-based, Android, iPhone, iPad and Mac apps. The best AMBOSS alternative is WikiPathways, which is both free and Open Source. Other great apps like AMBOSS are Medscape, Wikimed, GrepMed and UWorld USMLE.