Laravel - A PHP Framework For Web Artisans
JEFIT - Jefit is the #1 popular gym workout app for Android and iOS. Jefit allows you to manage your training routine and keep track of your workout progress easily.
Fat-Free - PHP micro-framework designed to help you build dynamic and robust Web applications - fast
MyFitnessPal - Track the number of calories that you consume each day with MyFitnessPal. The app also lets you create a diet and track the exercise that you complete each day whether it's walking, running or some other type of program.
Slim Framework - Slim is a PHP micro framework that helps you quickly write simple yet powerful web applications and APIs.
Runtastic - Runtastic offers a series of fitness apps that can be used to track your running, walking, hiking, and cycling, as well as many other fitness routines. Read more about Runtastic.