Vortex Approach App available now! 

It is available now for free! In spirit of FOAM, the creators committed to never charging payment for the app . If you enjoy using the app to learn, please say thanks to Nicholas Chrimes, Peter Fritz and Tessa Davis if you ever get the opportunity, via Twitter or posting a comment on this blog. The story behind the app development is upcoming as a blog post and podcast here. Stay tuned! Spread the word about the Vortex App