Hi,
Refer below links
https://success.outsystems.com/Documentation/11/Setting_Up_OutSystems/OutSystems_system_requirements
The cost, it depends on the application requirements.
https://www.outsystems.com/pricing-and-editions/
Thank you for your response. We currently have the Outsystems Basic Development license. Would we be able to downgrade if we perform on premise deployment? What license is the least expensive that would allow this deployment? And what is the cost of this license?