Plank Challenge: Core Workout is a free Android app developed by Leap Fitness Group. This app features various plank exercises to help you get in shape, gain strength, and lose weight. The workout routines provided in this app use a mix of static and dynamic planks to help you burn fat quickly. The app offers a 30-day weight loss plan that can be customized according to your fitness level and preferences. With no equipment or gym needed, this app allows you to do plank workouts anywhere, anytime.

Planks are the most popular and effective fat-burning exercise, and this app provides different variations of planks that engage all your muscles, including your core, shoulders, glutes, and more. Planks are a great option for people with weak knees since they put no pressure on knees. Additionally, planks are more effective than crunches at burning belly fat. Plank workouts also improve your posture, balance, and flexibility, and help you achieve a strong core. The app provides detailed instructions, animations, and videos to guide you through every workout, and you can track your weight loss progress and burned calories automatically.