
Principle Guy: Strength Coach
Workouts, pilates & yoga coach
0 ratings
Free
About
Methods are many, principles are few. Principle Guy is an app and a community for movement you will enjoy for life.
Everyone with a body is an athlete. Whether you start from zero or have trained for years, the training adapts to you.
WHAT YOU GET
Home and gym workouts. Ready-made templates for strength, cardio, pilates, yoga and mobility, or build your own.
Erik's voice in your ear. He guides you through every exercise, counts you down and reminds you of the technique.
A ladder for every movement. Master a level and the app moves you up. No guessing.
Progress and records. Workout history, personal records and your daily streak.
Nutrition. Calories and macros, a food database, recipes with photos, and food from MyFitnessPal and other apps through Apple Health.
Journal. Sleep, weight, steps, water and more, also synced from Apple Health.
Principle Check-in. A weekly overview of your training, metrics and nutrition.
Challenges. Challenge a friend and train together.
Community. Chat with people on the same path, and with Erik himself.
WHO IS ERIK
Master's degree in sports science, European Jiu-Jitsu champion, WFF PRO bodybuilder and head coach at Epix Gym. He combined football, bodybuilding, calisthenics and science into the Fitness Level system.
Repeat and enjoy.
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What's New in Principle Guy
2.3.92
October 23, 2026
New recipes with photos, food from other apps in Nutrition and a short guide to how a workout works. Pause Erik's intro with a tap and turn it off right in the preview. Fixes for onboarding, Check-in and workout history.
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