CrankWheel is described as 'Easy-to-use screen sharing software that allows users to share their screen in 10 seconds without any installation. It is free for individuals, with additional features available through a monthly subscription' and is a web conferencing tool in the office & productivity category. There are more than 10 alternatives to CrankWheel for a variety of platforms, including Mac, Web-based, iPhone, Windows and iPad apps. The best CrankWheel alternative is join.me. It's not free, so if you're looking for a free alternative, you could try Cisco Webex or Mikogo. Other great apps like CrankWheel are GoTo Meeting, Apple Screen Sharing, FreeConference.com and Screens.