I have the navionics app for my Droid only 10.00. You can drop waypoints to it follow tracks etc, not sure how you would upload them to your bird though. I'm not familiar with that unit but since your asking I can only assume it's not a GPS unit if it us just use that.
I would buy a console mount GPS unit/chartplotter capable of accepting Navionics chips, they are 1000% worth it regardless where you fish you'll wonder how you ever fished without it. They are pretty affordable nowdays.