MotionX GPS Sport / Sport Lite Fullpower Technologies Cost: Free/$2.99
I use GPS Sport for a pretty simple purpose: I walk for exercise outdoors most days. GPS Sport tracks how far, how fast, and how long I've gone, so I can keep track of calories burned. I don't use it every time I walk outdoors, just every couple of weeks to get a status update.
But GPS Sport does a lot more than that: It draws a map of routes, using street, topo/terrain and satellite maps. You can e-mail your track to multiple recipients, post photos, share information on Facebook and Twitter, and access and control your iPod music directly.
If you're looking to use GPS Sport the same way I do, the free Lite version should be fine for you. It stores up to three waypoints, and a single track. If you want to stretch your geeky fitness muscles, go for the
paid version, which stores up to 303 waypoints and 101 tracks.
Weightbot Tapbots Cost: $1.99
Weightbot keeps track of your weight. The software lets you enter your weight every time you weigh yourself, set your goal, keep track of progress toward your goal, and view your BMI. It tracks your average weekly and monthly weight loss or gain and shows units in pounds or kilograms. Weightbot even lets shy persons password-protect their weight information.
You could do all this just using the iPhone's built-in software, but Weightbot is a fun little app. It makes nifty clicking and creaking noises as you work it, as though it had a clockwork mechanism doing the calculations for you. It's fun, and it only costs two bucks, so give it a go.
Lose It! FitNow Cost: Free
One of the most important thing you can do to lose weight is to keep a food journal, writing down every single bite of food or drink that passes your lips. That's what Lose It is for, it's a food journaling app that also helps you track calories, nutrients, and calories burned during exercise.
Enter your current weight, how much you want to lose, and your activity level, and Lose It gives you the total number of net calories you need to eat each day to achieve your goal. It's easy to enter foods and exercise when you're on the go, as well as update your weight over time.