It was working until I updated it
It looks like the latest version corrupted my profile. Every time I click on my old profile the app crashes. A new one works just fine. Ive had to delete the app and reinstall to release my old profile name, since you cant manage profiles from the start screen. Luckily I only lost two days of data. The rating is based on my previous experience with the app.
z3fir about
Brain Exercise with Dr. Kawashima, v2.1.0