I find it a lot harder to get apps for my blackberry than I do for my iPod touch. I have stuck with MyFitnessPal - it is easy to navigate and helps keeps me on track with nutrition and calorie intake. I am thinking about getting Endomondo for tracking my runs. My brother n law uses it with great success but I have seen some reviews that say it willl crash a bb. Hoping a few others will reply with suggestions as I am curious too.