There is a tool like citrix receiver for RDS?

Good morning everyone!

Let me explain my scenario:

I have RDS in my Windows Server 2008R2 also I have my users (in my active directory) but what I want is that when my users logon into their sessions they cannot see their desktops I just want them to see the apps I already published.

I know they can access through RD Web Access but I dont want them to see their desktop.

In Citrix I know I can install in (my thinclient) Citrix Receiver and when they logon they can access to apps.

The point is that someclients can't buy Citrix I want to offer RDS.

Thanks for your time.

Regards!