Hello Ghus,

Cylinder targets are included in a classic license, just be sure that your client is agreeable to the terms of the developer agreement (seen here https://developer.vuforia.com/legal/vuforia-developer-agreement). If they aren't, that would be the main reason to go with a pro license. For pro license pricing, you'll have to reach out to our sales team here: https://developer.vuforia.com/targetmanager/licenseManager/pricingInquiry

Thanks,

Vuforia Support