# Muscle Mastery

> Personalized fitness and nutrition tracking with certified coach support. (iPhone/iPad app by L8R Lifestyle, LLC.)

- Source: https://appshunter.io/ios/app/muscle-mastery/id1581495624 (this page in markdown: same URL + `.md`)
- Developer: [L8R Lifestyle, LLC](https://appshunter.io/developer/1581495626)
- Category: Health & Fitness
- Price: Free
- Rating: 5.00/5 from 95 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.5 · 159 MB
- Languages: American English
- Released: 2021-09-01
- Data updated: 2026-08-23
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/muscle-mastery/id1581495624/reviews.md

## What is Muscle Mastery?

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.

## Key features

- Personalized training plans with video instruction
- Workout and progress tracking
- Nutrition and macro tracking
- Direct in-app messaging with coaches
- Habit tracking and accountability
- Integration with wearable devices

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/muscle-mastery/id1581495624/reviews.md

### 5/5 — Amazing!

*2022-10-17*

This has been an amazing experience so far!

## Frequently asked questions about Muscle Mastery

### What can I track with L8R Lifestyle?

L8R Lifestyle allows you to track workouts, including weight, reps, and sets. You can also monitor your weight, measurements, progress pictures, and daily habits to stay accountable.

### How does L8R Lifestyle connect with coaches?

You get exclusive access to your L8R coach through in-app messaging, providing accountability and support whenever you need it on your fitness journey.

### Can L8R Lifestyle connect to my wearable devices?

Yes, L8R Lifestyle connects to wearable devices like Apple Watch (synced to Health app), Fitbit, and Withings to sync your body stats directly.

### What kind of workout guidance does L8R Lifestyle offer?

The app provides access to training plans that include detailed video instruction and guidance, ensuring you perform exercises correctly and effectively.

### Does L8R Lifestyle have ads?

No, L8R Lifestyle is ad-free, allowing for an uninterrupted user experience focused on your health and fitness goals.

### What devices is L8R Lifestyle available on?

L8R Lifestyle is available on iPhone, iPad, iPod, and Apple Watch, making it accessible across multiple Apple devices.

### How often is L8R Lifestyle updated?

The latest version is 7.203.0, and it was last updated on September 22, 2025, indicating regular updates to improve the app's functionality and features.

### What is the age rating for L8R Lifestyle?

L8R Lifestyle has an age rating of 4+, making it suitable for a wide range of users interested in health and fitness.

## Version history (last 5 releases)

### 8.18.4 — 2026-08-21

Bug fixes and performance updates.

### 8.18.2 — 2026-08-05

Bug fixes and performance updates.

### 7.203.0 — 2025-09-22

Bug fixes and performance updates.

### 7.181.0 — 2025-05-06

Bug fixes and performance updates.

### 7.174.0 — 2025-03-28

Bug fixes and performance updates.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-23.*