Memo is a micro-blogging network on Bitcoin Cash blockchain that rewards users with ...Bitcoin Cash of course. It's still in Beta phase but an active project and the developers are still making changes and adding more features. An Android app is already available and you can download it here.
Another similar sister chain works on BSV blockchain.
Cryptocurrency & Blockchain
A cryptocurrency is a digital asset designed to work as a medium of exchange that uses strong cryptography to secure financial transactions, control the creation of additional units, and verify the transfer of assets.