This is a helpful study tool, I really like the quiz function. But I wish there was more options for that. For instance, it would be nice to have an untimed mode, so you could just practice the morphology. Additionally, it would be nice if there could be a few types of tests, like the basic WBC/RBC morphology currently available, and another one for cell types seen in malignancies, featuring Blasts and what not. Currently, one of my biggest struggles is just correctly IDβing the maturation stages of the RBCs and WBCs, so being able to work on that would be helpful.