New social media - what is that sphere ?

Hello #steemian, I heard about #new social media sphere

I don't know what is that sphere
I try to find out about it, I don't understand how to use that social media.
I try to sign up and created account sphere, I'm still confused sphere looks like this :

I get 50 tokens at the beginning of the register, that register for wallet account, at the first I don't know that is wallet account, I think that is sphere, I'm wrong.

#sphere have separate account, for wallet and application, if I want to use the app, I have to go install the app, then I get the app on google playstore.
at the wallet account, you can get more rewards If you send your friends or other people to use your link referral in sign up.
you will get more 50 token if 1 person use your referral link, I have 100 token because I send my friend to sign up with my referral link

and this list of rewards if you can send your friend more

after your finish with wallet account and installing the app, run the app on your mobile phone, and sign up again, you can use same email in the app like you use on wallet account, or you can sign up with different email.
and the app of sphere looks like

this is my account sphere, I have not use yet