Nice app, combining the functionalities of a messaging app and a cryptocurrrency wallet. I couldn't find an official list of the 12 cryptocurrencies supported in the wallet, but a mention on its website lists the usual suspects, BTC, ETH, QTUM, INK, EOS. It could serve as a place to host communities. However, it seems like it can only accommodate up 30k users in a group, so that's worth keeping in mind.