ETZ is basically similar code like ETH,
any ETH Daaps can work on ETZ.

But
ETZ need zero fee and instant Tx
it will make micro finance and small/unnecessary service can be made.
Dapps can be made just like on ETH,
no difference to ETH requirements for application to run on it.
Any ETH applications can be tied there with no fee at every transaction and (almost) instantly received.

It is likely a hidden gem.

No coincap market information,
Look nice on its site https://etherzero.org