Been using MyFitnessPal for around 5 years now, its decent. Don't like the fact that you have to pay for better services so I don't use it like it is designed, I reserve that for SparkPeople which I find much better to use (though sadly its days are numbered which is sad since I've been using it since I discovered it in 2006).

I am on the keto diet and use carbmanager app, it even has some restaurants in it. 🙂

I use an Excel Spreadsheet (self created) that tracks "everything" - calories, fat, sat fat, trans fat, cholesterol, sodium, carbs, fiber, sugar and protein (I have daily/weekly targets for most of them).

I do have a "master sheet" with a single portion of everything I typically eat ever so it's a simple "cut/paste" and useful to preplan a day or two in advance if I'm ambitious.

It was a good bit of work to initially set up, but it works well for me.

Here is an example

Hi Catlover. I personally use the Carb Manager but I believe that it was created for Keto users because your carb intake is extremely restricted(less than 30) per day and I am consistently going over my limit but works otherwise.