iSpring Free - iSpring Free is a free eLearning authoring tool that allows you to create responsive courses and quizzes right in PowerPoint and convert them to HTML5 or SCORM.
Xmind - Xmind is a brainstorming and mind mapping application.
isEazy - Cloud-based eLearning course authoring tool
MindMeister - Create, share and collaboratively work on mind maps with MindMeister, the leading online mind mapping software. Includes apps for iPhone, iPad and Android.
EdApp - EdApp is a multi-award-winning mobile-first learning platform that introduces a better way to train teams anytime, anywhere, on any device.
Coggle - Coggle is a simple, beautiful, powerful way of structuring information.