# Muscle Mastery

> Health & Fitness

Canonical page: [https://chrome-stats.com/d/id1581495624](https://chrome-stats.com/d/id1581495624)

## Overview

- **ID:** `id1581495624`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** L8R Lifestyle, LLC
- **Category:** Health & Fitness
- **Rating:** 5.00 / 5 (95 ratings)
- **Version:** 8.18.7
- **Last updated:** 2026-09-11
- **First published:** 2021-09-01
- **Size:** 159 MB
- **Data as of:** 2026-09-15
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/muscle-mastery/id1581495624)
- **Privacy policy:** [https://www.trainerize.com/privacy.aspx](https://www.trainerize.com/privacy.aspx)

## Description

Your program lives here. This is where the work happens.
Muscle Mastery is a private coaching brand built by Jeff Later, IFBB Pro, with over 24 years of experience and 8,000+ client transformations. The method is built on four phases: Prime, Prove, Power, Polish. A system designed to change your body and what you believe is possible for it.
If you're a Muscle Mastery client, this app is your home base. Your training program, your nutrition plan, your check-ins, and your coach, all in one place. No confusion about where to go or what to do next. Open the app, follow the plan, submit your check-in, and move forward.

-Access your custom training program with video instruction and exercise guidance
-Log your workouts including weight, sets, reps, and personal records
-Submit weekly check-ins directly to your coach with photos, measurements, and notes
-Reference your nutrition plan and track your daily macros
-Message your coach directly through in-app messaging
-Track body weight, measurements, and progress photos over time
-Check daily habits set by you and your coach
-Get push notifications for scheduled sessions and coach updates
-Connects to Apple Watch and Apple HealthKit, Fitbit, and Withings to sync body stats

This app is for Muscle Mastery clients only.

## Rankings

- #134,050 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id1581495624)