Okay, but ads will drive you crazy

I just want the app to check on the ships in my gulf coast area and this app does ID them okay, but...the ads in the free version will drive you crazy. A large ad completely takes over the screen and, at least on my iPad, when finally xd out of existence turns the view from landscape to portrait mode with no way to get back (yes, Ive got my iPads orientation button set correctly) to landscape except to close down and restart (which brings up the ad again--arggghhhhhh). I guess the free version is okay but I think Ill have to upgrade to the Pro version for $4.99 and hope the ads go away (it says no advertising, but....).

Jwudgy about FindShip - Track vessels