Karos is an app that pays you to carpool. if you already do, you can register any trip and earn €0.30 per ride. the only requirement is a minimum distance of 10km. if you don't have anyone to share with, it will find you people traveling the same route and at the same time. it works like this:
To refer a friend on Karos, you must send them an invitation via the application (My account> Referral> Refer my friends). Your godson will receive a message, and will only have to download the Karos application via the link received. To be referred on Karos, all you have to do is download the Karos application via a referral link, or enter a referral code when registering.