OpenStack is a free and open-source software platform for cloud computing, mostly deployed as infrastructure-as-a-service (IaaS), whereby virtual servers and other resources are made available to customers.
License: Open Source
Cloudsigma offers a user-friendly interface and flexible pricing, making it suitable for businesses seeking high performance with less infrastructure control. In contrast, OpenStack provides a highly customizable open-source platform ideal for organizations with the technical expertise to manage complex deployments.