The best thing about RetroApp is that it allows me to create, edit, and share my own retrospective slides, which helps me keep track of my learning progress from day to day. I can also choose what information I want to see in each slide. It's great because you get feedback from your colleagues and students after they have viewed them too. It's not free, but I don't mind paying for something useful and helpful. There are some things I like better than others. For example, there isn't an option where I can add a link to a video or audio file. I would recommend this to anyone who is looking to improve their professional development skills and needs to collect data from their trainees/students. It has helped me collect feedback on how I can improve as a trainer. This helps me know what should be improved upon and what should be kept the same.