At the moment Hive Engine Coins are not (yet) supported! But the code is open source, so there is definitely an opportunity for it! 😄
If I'm right some people have a similar idea, to create some sort of "dapp library" where you can immediately use any dapp.
I think from a decentralization point of view, the more options the better. The tech-stack behind the Keychain mobile app is also different than the one I'm using, so I would have to learn a new framework before I could help there! 😁