Quizi.io is a powerful marketing tool.

Quizi.io is a service of convenient and informative quizzes and polls. Different online tests for you to try or discover answers to the most provocative questions. Solving tests and answering questionnaires and get reward in cryptocurrency. Useful dashboard allows you to control rewards and make fast withdraw.
https://quizi.io/
Unchangeable.
The results of quizzes and polls are being saved in the Impleum blockchain. They stay reliable and unchangeable forever.
Customer acquisition.
The service allows you to attract new users, increase their level of awareness about the brand.
Promotion.
Users can pass the test and share it with your friends.
For this they will receive reward in the cryptocurrency.
Embed.
Embedding of polls and quizzes cards allows you to fully control traffic. Embed cards into your site and work with your own users.