If you want to keep track of each and every thing you take and the amount of calories you spent through out the day then this app is the best you can get. It has food analysis, charts, stats and exercise regimen pages.Power Apple iphone 4 comes with 1GHz ARM Cortex-A8 CPU that makes it a powerful device. Coupled with a 512 MB RAM, it’s a device that can handle multitasking well. However, HTC Sensation is in a different league all together. The device is powered by 1.2 GHz dual-core processor and 768MB RAM. The dual-core processor makes it a more powerful compared to other devices.I usually run Pandora in the background on my workouts, but you can enable it to play the music off your playlist automatically when your workout starts. You can also choose which playlist to use, for instance if you create a playlist specifically for working out, you can direct the app to play music from that list. How awesome!