Hi Yomer,
App Connect Enterprise is available both in the cloud and also for use on-premises.
IBM App Connect Enterprise software can be installed directly on a physical machine running in your own Data Center, in a VMWare virtual machine, in a Docker image, as part of an IBM Cloud Private installation, or installed by you into a public cloud such as IBM Cloud, AWS, Google Cloud, or Microsoft Azure.
The IBM App Connect cloud service is fully managed and hosted on IBM Cloud (the new name for Bluemix). It provides a free Lite plan, a Professional plan which charges you based on the number of flow runs you execute, or an Enterprise plan which provides everything in the Professional plan in addition to running integrations in containers utilising the runtime previously known as "IIB".
Cheers,
Ben