Using the SAP Cloud for Customers does not imply free access to Cloud OCR SDK service. But you can find a business card scanning option in the SAP Cloud for Customers, extended edition app (iOS and Android only). Please review the detailed instructions on working with this extension on the SAP site:

Configuring and using the Business Card Scanner in SAP Cloud for customer for iPhone
Configuring and using the Business Card Scanner in SAP Cloud for Customer for the Android Phone