I am already an user of Invision (https://projects.invisionapp.com) and got requested to use Gliffy Diagram instead to draw Wireframe for a mobile App.
I am missing mostly function to set hotspot and define what to show next.
Main Requirements would be:
1. can set any shape or text as an hotspot zone
2. as option of hotspot zone, we can choose specific layer(s) to enable a Hide/Show switch effect
3. then, if we click on these hot spot, we can hide/show specific element and give feeling of interaction
4. to make it work, hotspot must be "active" only if the element/layer is show