I would recommend MedAngle as it is a platform that helps you to test yourself and assess that how much knowledge you have been able to retain especially before exams, when you feel like everything is muddled up in your mind, it gives you a clear understanding of where you stand. Along with this, it is a great resource that can help you study when you don't feel like reading wordy paragraphs from textbooks. Smart sets are especially amazing as they help you a lot and you can solve questions on particular topics you are struggling with. Also, it has loads of clinical cases and scenarios and with each question, a logical explanation is given which makes it very helpful and helps you clear your concepts in a fun way. It is a must-have for all med students.