This is something phenomenal for students. When some app like this is available for you to revise it properly and can ensure concept understanding along with revision then a student can prosper in the subject and can also compete with others. This will make a healthy competition between the students as well. I am sure revision has a greater impact and when it is available in the gamified revision then it marks an impact in students which is key to their success in recalling the subject.
Excellent hunt. Sharing it in my twitter handle.
Thank you and Have a great day.