Amonwilde 2 points 2y ago
I don't think they exist yet. The ones that do are junk cash-ins, I bought one and it was worthless. A really good or well developed one of these might be great, but it's a serious UI and engineering challenge and no one with the interest or infrastructure wants to work on something that won't make much money. If you're the kind of person or org that can take on novel challenges like this there are ideas that will actually make you millions or billions.