4 Free Apps for Good Health

Nudge
Answer four questions to get your “Nudge Factor” score, then Nudge rates your health on a scale of 1 to 110. Connect fitness devices and compare health data to what friends and family are posting. Available for iPhone and Android devices. nudgeyourself.com.
Map My Run
Touted by health industry publications and websites as the No. 1 running app, users can map their routes, track their runs, log food consumed and share data with friends and family. Available for iPhone, Android and Blackberry devices. mapmyrun.com/app.
Fitocracy
Earn points, beat quests and unlock achievements as you complete expertly designed workouts, set by set. Your virtual coach works with you daily to motivate you and keep you on track. Available for iPhone and Android devices. fitocracy.com.
Fitness Buddy
Choose from 75 customizable workouts, 1,000 videos and 1,700 exercises to create a routine that matches your lifestyle, goals and fitness level. Track weight and body measurements using graphs. Available for iPhone and Android devices. fitnessbuddyapp.com.