I'm looking forward to the SAT coin launch.  I've joined your Telegram channel.

As a 15+ year veteran programmer, I of course have checked their Android app.  I can assure you that this app is NOT a cheap webview app.  This app looks like a very solidly built app as I did sign up and tested it out for a few days.

They received a 4.2 rating on Android Play Store with thousands of users already on their beta app.  To build something like the Sphere app would take at least a couple of programmers one year to build due to the complexity of building a social network.

So, judging on their product, this is NOT a scam.

I have a high karma reddit account.  Msg me if you need help.

I once submitted a question to Polybius and never got any replies back.    I submitted a question to Sphere to ask about their bounty program and received a detailed answer back in about 30 minutes.  IMHO, I think they are good.