Apps for Weight Loss

I'm trying to put some good apps on my new phone for weight loss.  There's SO many good ones that will check how fast you're walking or how far you walked and will calculate how many calories you're burning.  I love that kind of thing.

So far I have Libra, which does a really pretty weight loss graph.  I'm not sure I love this, but whatev. :)

I have Cardio Trainer.  I guess this one's supposed to be a great one to take on walks.  It also has  little thing that shows that calories you've burned that day in the notification bar.  That's always a happy thing.  It will track your walks on GPS and tell you how fast you're going.  I'm excited about this one.  It's also going to remind me on the days that I don't automatically have an early workout to work out.  Go me.

I have Record Beater.  I'm not sure about this, I haven't used it at all but I think it changes your music to one that will promote you to walk/run quicker.  I'm excited, I put a few tunes on my phone and I LOVE when I can walk to the pace of the music.  Call it the little marching band girl in me. :)

Anyway, do you have apps that you love?