What one do you use? Do you log foods before or after you eat them?

myfitnesspal.com - and I definitely pre-log my day (or even multiple days) so that I have a plan to stick to. I can always tweak it if something comes up.

I'm using LoseIt and enjoy the format and social aspects of the site.

I am using the Lose It! app and it seems to be working well for me so far. I log foods right before or sometimes while I eat them, haha. I like that the app is on my phone, my pedometer is on my phone, I look up calories for items on my phone, etc. I use my phone for everything throughout the day anyway, I may as well use it to get in shape!