Yes you heard right... confidential features are coming back to Smartcash in the form of a sister coin called Bitcoin Confidential. I assume the core code must be using Bitcoin but using Proof of Stake instead of POW ; for them to call it Bitcoin Confidential.
So for every 10 coins you have in the online smart wallet (not on Exchange), you can get 1 Bitcoin Confidential. How cool is that.
BitcoinConfidential website: https://www.bitcoinconfidential.cc/
Smartcash website : https://www.smartcash.cc/