What are some alternatives?
When comparing NXT and Zcoin, you can also consider the following products
Allscripts CareInMotion - Other Health Care
Bitcoin - Bitcoin is an innovative payment network and a new kind of money.
eClinicalWorks - eClinicalWorks - the largest Cloud EHR in the nation. Make the switch to eClinicalWorks
Monero - Monero is a secure, private, untraceable currency. It is open-source and freely available to all.
Litecoin - Litecoin is a peer-to-peer Internet currency that enables instant payments to anyone in the world.
NameCoin - Namecoin is a distributed domain name system based on the Bitcoin technology.