I don't understand it's a masternode coin or an exchanger project and there's an airdrop and giveaways

Its a masternode hosting platform that you can use if you want to run a matesternode coin but don't have the technical skills to do so this where Minnodes come in, a turn key masternode hosting solution.
Short and clear

In any case, I would recommend better to touch the technical document of the project, there everything is described in more detail and it is shown how this project works.