MyFitCoach is a free Android app that helps you build muscle effectively through scientifically based strength training. The app selects the optimal exercises, sets, reps, and weights for you based on your fitness goals. MyFitCoach creates a personalized training plan that fits your available training time, equipment, and muscle strengths, weaknesses, and priorities.

With every workout, MyFitCoach learns more about you and selects the perfect reps and weights for each exercise so you can get stronger every week. The app offers over 500 exercises with detailed descriptions and images to help you learn new exercises and perfect your form.

MyFitCoach provides a detailed progress and success analysis after each workout and week. You can see how long you trained, how much weight you lifted, and which exercises you improved on or set new records. The app optimizes your training volume for long-term muscle growth based on your training performance and recovery.

MyFitCoach is available for free download, but an active subscription is required to use the app. Subscriptions are available monthly, quarterly, or annually and will be charged to your Google Play account after purchase confirmation. The subscription will automatically renew unless canceled at least 24 hours before the end of the billing period.

Overall, MyFitCoach is an excellent app for those looking to build muscle through effective strength training.