Are, but we have Raymarine c70 which came with the boat & needs data from card, can't do wireless with I-pads etc. Think I will stick with navplanner & keep charts up to date with web app. Looked at the upgraded kit but don't think it good enough yet to rip it all out & start again, besides may upgrade the whole boat at some point, after the kitchen, new driveway, wood flooring, upgraded pool etc. etc.
The webapp is just intended for viewing and general planning -- areas to visit but not specific waypoints. They sell the NavPlanner software that will let you route plan, etc. and then transfer to your plotter