An Azure platform as a service offer that is used to deploy web and cloud applications.
Hello again, @mrVM !
What do you pay for when you use the Azure Cloud Shell? You are correct, the charges with Azure Cloud Shell are related to your data/storage:
https://azure.microsoft.com/en-us/pricing/details/cloud-shell/
Cloud Shell billing is based only on the Azure Files share used to persist your data. Your total cost depends on how much you store, the volume and type of storage transactions and outbound data transfers, and which data redundancy option you choose. See how they compare in the "Data Redundancy Options" section. By default, Azure Cloud Shell creates a locally-redundant storage (LRS) account on your behalf with an Azure Files share. For Bash, this share will also contain a 5-GB disk image.
For more information, see Azure Files Pricing.