Navatronics ap for I phone. Anyone use it?

[pikehunter1989]

I was watching a fishing show the other day and they were using an ap called navatronics. Gives depth chart for almost all lakes in Canada and the states. I decided to purchase it (14.99) I think it was. And have looked at a few lakes I fish and found some new spots I'd like to check out.
Just wondering if anyone else has used this ap...it seems like a very handy one and I look forward to trying it out. There's other features in it aswell but I havnt played with it enough to really figure it all out.

[bloopbloob]

Navionics? I have it, don't use it much in the summer, but is pretty handy for ice fishing to find dropoffs etc.

[pikehunter1989]

Ya that's when I think it'll shine too. Found a few sharp drop offs and mid lake humps I'd like to try this winter