ZenCloud is a hosted cryptocurrency mining service. This means that ZenCloud hosts ASIC miners for you in their datacenter. One big difference between them and services like CEX is the hardware miners you buy, you own and can have shipped to you at any time. However, the miner at the ZenCloud datacenter is not the miner you will receive if you request them to ship it to you.
Call it either an evolution, or a revolution; ZenCloud is the future of mining!