It seems that the token is based on Ethereum, so you can use any ERC 20 wallet.... 

https://icobench.com/ico/gath3r

I see a rather extensive list of countries on the ICOBench that are prohibited from taking part in investing ... why? Due to disagreements in legislation? 

Any owner of a website or application can make direct profit from mining. The owners have the option to distribute their earnings between their users who have mined (through the Loyalty Program, completely at their discretion) , which allows for the privileges to be shared. The same question can be asked about how does a user profit from their data being collected and shared by big tech companies? It's all about supporting the publishers in the end, and we believe that done in a transparent and safe manner, the possibility of donating some spare processing power directly to webmasters beats having your personal data collected and shared without your knowledge by third parties.

Do I understand correctly that your system will spread throughout the world, and these countries simply cant invest? Because it is a very good market when you start using your system.

I haven't seen any projects that limit the use of product in some countries .... This project will be distributed in any way everywhere because of the global nature of the idea as a whole. In addition, mining is popular around the world.

On their website of course:
https://www.gath3r.io/team.html

I see on their map labels in Romania, the UAE, and in India. Apparently, their offices are there.

In this case, this project is simply nothing I think. And all because if you have your blockchain, then it shows your level. And if you know a couple of lines of solidity, then this does not mean your ability at all.

By the way ... about exchanges ... which exchanges are you applying for? Or is your token already listed somewhere?

Thank you for bringing the community a nice project