This is a pretty good idea, this is pretty similar to another app here in the UK which I see people playing, however, the prize is £1000 rather than cryptocurrency. That app is pretty tough when you get past question 5, and I imagine this is the same. With that said, that's part of the fun. Cool idea and a good way to get people involved with crypto. Here are my pros and cons:

Pros:

1. A fun way to compete against other users and if you're good enough earn crypto along the way.
2. It's a free application which is available for both IOS and Android.
3. Allows you to participate in airdrops from the application which in turn provides extra value to the application as the live shows only take place periodically.
4. The application provides information about a large number of different coins which helps you learn more about different projects.
5. Easy to withdraw any winnings without a charge and you can withdraw at any time you want!
6. Incentivised to invite new users to the game and both the referer and the referral are rewarded.
7. They notify you when the game is going to take place, meaning that you won't need to worry about missing it.

Cons:

1. It could get quite annoying not winning very often as these games can be pretty tough (they need to be or everyone would win). Although if your keen and stick at it, I'm sure you'll crack it eventually.