The Jot Flip isn't a pressure sensitive stylus from what I can see, so wouldn't be specifically supported - it would just be an 'ordinary' stylus, and may not even require connecting to the iPad (don't quote me on that ). ArtRage supports the Adonit Touch and the Adonit Pixel models, as those are the ones with pressure sensitivity intended for drawing.
Thanks for the reply and information. Mine is very old one. Glad to know which one has the pressure sensitivity.