• Fast Food Calorie Counter (.99)Whether you are on a fitness plan and counting calories, carbs, fiber, or fat grams, this helpful guide will empower you to make better choices or allow you to "cheat" occasionally without feeling guilty.
• Nutrition Genius (free) helps users keep track of calories consumed, exercise, and weight. (Free from Ticklish Turtle)
• 1000 Exercises ($5.99)  created by experts at Men's Health and Women's Health magazines, allows users to build, log, and share workouts, as well as access video demonstrations of exercises.
• The Sports Rules ‘App’ (.99) Sports Rules is the perfect app for PE Teachers, Coaches, Athletes or anyone interested in swift easy reference of popular sports and their associated rules.
• Jillian Michael's Slim Down Solution (free) Includes: daily tips from Jillian, 30 slimming recipes, 30 N fat-burning exercises PLUS instructional, step-by-step videos from Jillian, Weekly podcasts from “The Jillian Michaels Show”, Ability to read Jillian’s message boards in real-time

And, since I'm not a PE teacher, here are what look to be very good recommendations/reviews from Mr. Robbo "PEGeek" (Jarrod Robinson.) He's created 8 blog posts that you can find here: – Part 1 – Part 2 – Part 3 – Part 4- Part 5 – Part 6 - Part 7 - Part 8 OR grab the PE Apps app (.99) for a one stop collection of the best PE apps.