I use this app a long time and it is a great enhancement to my site. It is the best "please delete my account" - app here in marketplace and the best one you can buy.
Full recommendation for this app and for @Makato as publisher, who is very helpful and supportive with any issues.
It is a very good addition to my website with a lot of fun to the members. The integration into IPS is nice, with interactions to the activity stream, notitications etc.
I had 60 quiz plays from Friday to Monday for my first nerd level quiz --> https://bit.ly/2kwvmza I also did a German translation. You find it here in the marketplace.
On fiverr you will find quizz creators. Take a look at https://www.fiverr.com/galinaitis She is doing great.