How much are the fees for each of the different iCloud plans?

Free: 5GB of storage per iCloud account (not per device)

$0.99/month: 50GB of storage (single user)

$2.99/month: 200GB of storage (family use)

$9.99/month: 2TB of storage (family use)

Click here for prices: link-> iCloud+ plans and pricing - Apple Support