Ericom AccessToGo is described as 'AccessToGo is the fastest mobile RDP remote desktop client for Microsoft operating systems. Its unique patent protected technology provides unparalleled usability and productivity by automatically resizing all Windows objects to optimal size' and is a Remote Desktop App in the Network & Admin category. There are more than 25 alternatives to Ericom AccessToGo 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 Remmina or DWService. Other great apps like Ericom AccessToGo are AnyDesk (Free Personal), NoMachine (Freemium), LogMeIn (Paid) and Remotely (Free, Open Source).
Remmina is a remote desktop client written in GTK+. Remmina primarily targets system administrators and travelers that need to work with computers remotely in front of either large monitors or tiny netbooks.
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.