There are really good ones out there. A few free I like for clients are “Loose it”, which tracks nutritional content of foods, calorie input and weight loss goals. “All recipes dinner spinner” is a nifty app which allows selection of ingredients, cooking time and method and comes up with recipes for a person. “Sports Tracker” is like a workout log which calculates calories, time, distance and workouts. A few others like Calorie King, Smart Pantry, and S.P.E.E.D. are okay but all cost per workout so not recommended. My favorites are “PT onthe Move lite” and “PT on the Move” ~(both versions of “PT on the net”, a fantastic investment as a PT). I can use these apps to design or tweak a client workout and email it to them. They can also use the “Lite” version of the app to view their workout. Free if you are a member of the website.