The subject says it all! I used to use the website FitDay years ago and their most helpful tool was their Daily/weekly Calories Burned -vs- Eaten bar graphs. It really motivated me and I was able to see a visual of what I'd worked off or what I was gaining.
The reason I don't use FitDay anymore is because they don't have an Android App. I like the app becasue I add stuff wherever/whenever instead of writing down lists to add when I get home (like I did with that site).

I agree.. This is one thing that really makes me want to use other diary sites that actually have this... Been waiting for it for way too long