A summary of study materials you need for ECHO board –
Klein – Clinical Echocardiography Review 2nd Edition, the 2nd Edition is available as an E-book on Vital Source, which you can review the 1100+ questions easier than using the hardcopy. It is not as user-friendly as a question bank but you can easily go over all questions. After a question there is a link to the answer and after the answer there is a link getting you to the question, but I feel the pictures and videos are very small on an iphone screen.
Board vitals – their 500 questions are from a book Echocardiography Board Review: 500 Multiple Choice Questions with Discussion 2nd Edition. Similar to Uworld, it has the appearance and functionality of a qbank.
M mode review paper