I too downloaded both MFP and lose it back over a year ago on a previous attempt at weightloss. I liked using MFP better and ended up deleting LoseIt. But if you are used to LoseIt and it's been successful I would maybe try both for awhile before switching over. If it isn't broke no need to fix it, right?
Eventhough my emphasis isn't all about calories, I am using MFP pal again this time. More to keep track of macro's. At least I had planned on that, but since I have been logging, I find myself very much paying attention to calories again.
. Eventhough LiveFit (program I'm following) program doesnt require you count calories, since I haven't been as strict with her allowed foods as the program call for, I feel safer knowing my calories are in check.
LaceyCen- I have a VERY tough time not sometimes cheating my body. I'm so afraid of underestimating, that when I eat something that I cant find exactly in MFP I end up going with something close and has the higher calories to be safe. I have often wondered about this. But since I am stll eating 1700-2100 calories I think I have more room for underestimating than someone only eating say 1200-1500 calories a day.
But I do love the app, and I love that I can check in my weight and it makes the trendline for you, and also that it gives you a weekly calorie total. This shows whether you are on track overall inspite of some higher days etc. Great tool.