Mocha VNC is described as 'provides access to a VNC Server. Using your iPhone, you can connect to a Windows PC or Mac OS X and see the files, programs, and resources exactly as you would if you were sitting at your desk, just on a smaller screen' and is an app in the Network & Admin category. There are more than 25 alternatives to Mocha VNC for a variety of platforms, including Windows, Mac, Linux, Android and iPhone. The best alternative is TeamViewer. It's not free, so if you're looking for a free alternative, you could try DWService or NoMachine. Other great apps like Mocha VNC are AnyDesk (Paid), LogMeIn (Paid), UltraViewer (Free Personal) and Remotely (Free, Open Source).
DWService is an open source project which offers a service that allows access to remote systems (Windows, Mac, Linux, Raspberry...) using a standard web browser - without any component required on the client side.
LogMeIn gives you fast, easy remote access to your PC or Mac from your browser, desktop and mobile devices. Premium features like file transfer, file sharing and remote printing help you stay connected and productive wherever you go.
Use Microsoft Remote Desktop for Android to connect to a remote PC or virtual apps and desktops made available by your admin. With Microsoft Remote Desktop, you can be productive no matter where you are.