Because it does not install, the portable version is lightweight:
One preactivated copy on a USB stick can be used on unlimited computers (one at a time). Great for computer labs or families. typing master 11 preactivated portable
: Unauthorized "portable" executables often bundle Trojans or keyloggers that can compromise your personal information. Because it does not install, the portable version
: A highly popular web-based platform that requires no installation at all. It tracks your progress, speed, and accuracy entirely in your browser. Because it does not install