Pricing
Cloud Shell is a free service. You only pay for the underlying Azure resources that are consumed.
Compute cost
Azure Cloud Shell runs on a machine provided for free by Azure. If you need file persistence, Cloud Shell requires a Microsoft Azure Files share.
Storage cost
If you would like to persist files across sessions, Cloud Shell requires a new or existing Azure Files share to be mounted. Storage incurs regular costs. For pricing information, see Azure Files Pricing.
Network costs
For standard Cloud Shell sessions, there are no network costs.
If you have deployed Azure Cloud Shell in a private virtual network, you pay for network resources. For pricing information, see Virtual Network Pricing.