Hi stadsarkiv,
So if you are only asking if the licensing for SSL VPN are the AnyConnect Apex or Plus that is correct, you have a couple of options depending of the amount of simultaneous users that you need to have connected, check this link out:
http://www.cisco.com/c/dam/en/us/products/collateral/security/anyconnect-og.pdf
And this one in case you have any other question:
http://www.cisco.com/c/en/us/support/docs/security/anyconnect-secure-mobility-client/200191-AnyConnect-Licensing-Frequently-Asked-Qu.html
Hope this info helps!!
Rate if helps you!!
-JP-