My Fitness Pal is an electronic food and activity journal that can keep track of your calories, macronutrients, weight, sleep, water, and activity. It also connects with activity trackers, exercise equipment, scales, wearables, and other apps to help you monitor progress, recognize patterns, and change behaviors.
Lose It is an electronic food and activity diary similar to My Fitness Pal. One unique feature of this app is the option to keep a photo log of your meals.
Plant Nanny was created by the company Fourdesire and uses gamefication to help users establish a habit of drinking more water. The app sends text reminders at preset intervals during the day. As a user records their water intake, their plant grows. As they advance in the game, they unlock more flower varities. This app is a fun way to develop a new habit.