Looking for a certain app. can you help...

I am going flying in a little cessna tomorrow. This will be my 2nd lesson. The instructor is happy for me to have my iphone on and it doesn't have to be in flight mode.

What this means is I can use the GPS to track the flight. I am looking for a particular app that will use the GPS and plot my track and allow me to place this over a google map or even google earth to show exactly where I have flown.

I have used a similar app for running (RunKeeper) and also another called iTrial but didn't like that one much.

Is there any you can recommend?

Thanks
Mark