Rob's job keeps him on the road, and he wants access to his desktop PC at home via his laptop or iPad. What's a good option, and can he do it without adding an app? Leo says that he can do it in a browser, but it's better in an app.
Atlas Remote Access on the iPad works well, according to the chatroom. There's also TeamViewer. But he'll need to install something. Google Chrome Remote requires installing an extension, but if the hardware isn't locked down from browser extensions, that's an option.
Guacamole is open source and is something he could install on his desktop and it uses HTML 5 for him to connect via his web browser. And it's free!