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About Flex Method

Flex Method is a personalised training and nutrition app designed to help you build strength, improve body composition, and create sustainable habits that fit your lifestyle. Whether your goal is fat loss, muscle gain, or simply feeling better day to day, Flex Method provides structured guidance backed by evidence based coaching principles. Inside the app, you’ll receive customised training programs, tailored nutrition guidance, and clear weekly structure to remove guesswork and overwhelm. Programs are designed to progress with you over time, adapting to your experience level, schedule, and goals so you can stay consistent and confident in your approach. Flex Method goes beyond generic workouts by focusing on accountability, education, and long term results. Track your workouts, monitor progress, and build routines that support your health and performance without extremes or quick fixes. Built by experienced coaches, Flex Method is designed to support real people with real lives. The app brings professional level structure and clarity into one simple platform, helping you train smarter, eat better, and stay consistent for the long term.

What’s new

Version 3.0.386 · Updated October 10, 2026

This release of MyStrengthBook focuses on improving the user experience with more control over commonly used features and workflows.

App privacy

The developer, Millie Marshall Fitness, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

Alternatives to Flex Method

Looking for apps like Flex Method? Here are 6 similar apps on the App Store. The highest rated is BiaFit llc (5.0/5), and all 6 are free to download.

Flex Method vs. alternatives
App Rating Price Last updated Compare
Flex Method – Free October 10, 2026
BiaFit llc 5.0 / 5 (20) Free Oct 12, 2026 Compare
Alpha Physique 5.0 / 5 (2) Free Sep 9, 2026 Compare
Zone6 5.0 / 5 (1) Free Oct 12, 2026 Compare
MN Challenge – Free Oct 30, 2025 Compare
Meal Engine - AI Diet Coach 4.4 / 5 (7) Free Aug 31, 2026 Compare
Six Pack Chick 4.9 / 5 (116) Free Apr 1, 2026 Compare

Compare Flex Method with the top alternatives: ratings, updates, ASO score and keyword gaps →