A website that allows you to build interactive decision trees / algorithms?

For several years I've been waiting for someone to make an online web app that allows you to build interactive decision trees/algorithms for clinical teaching but a general teaching one will likely do. The best I've come across is iboske but thought I'd ask here to see if anyone perhaps has come across one (preferably one w/ a freemium model). Thanks in advance.

. http://www.iboske.com/ https://answerpath.com/ https://www.yworks.com/pages/interactive-decision-tree-diagrams hhttps://gitmind.com/ https://zingtree.com/ https://corp.yonyx.com/