This is the best app that I found for this purpose. It’s easy to use. It’s really helping me to prepare and it’s pretty reasonably priced for what’s offered. It’s cheap enough that I think I might invest in it to avoid the ads. Since sometimes the ads don’t work, when that happened I just uninstalled and reinstall and then it worked just fine, although I lost my level.

The short question-and-answer format, along with the ease of quickly responding during free time, makes this type of application truly great. The ability to develop a routine of solving questions continuously, almost like a game, should definitely be a part of our daily routine on our phones. Therefore, I thank you and congratulate you.

The app offers a wide range of questions that cover both fundamental and advanced topics, making it a great tool for both beginners and experienced data scientists. Definitely worth a try!

It is great for daily practices. I wish you guys have interactive voice exchange to make it more real experience.Looking forward more updates.

cool, extremely exhilarating and fun gameplay out competing all other apps in general. I practice this game 96 hours a week and quit my job to use it more.

Really helpful and good app… but it commonly has the wrong answer marked correct. I mean I don’t know everything but even on the core concepts it gets confused