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Screenshots

  • Flex Foundry screenshot 1
  • Flex Foundry screenshot 2
  • Flex Foundry screenshot 3

About Flex Foundry

Welcome to Flex Foundry! Forge Your Physique! Flex Foundry is more than just a fitness app - it's your personalized gateway to a stronger, healthier you! With our innovative platform, you'll embark on a transformative journey tailored specifically to your goals and lifestyle. Key Features: Custom Meal Plans: Say goodbye to cookie-cutter diets, and say hello to individualized plans suited to meet your needs and help reach your goals! Tailored Workout Routines: Whether you're a gym newbie or a seasoned athlete, you are guaranteed personalized workout plans to challenge and inspire you to make fitness a priority in your life. Weekly Check-Ins: Stay on track and motivated with weekly check-ins and personalized feedback. Accountability: We believe in the power of accountability. That's why we're here to support you every step of the way, ensuring you stay focused on your goals. Why Flex Foundry? Personalized Approach: No two fitness journeys are alike. That's why we customize every aspect of your experience, from meal plans to workout routines, to fit your unique needs. Expert Guidance: Our team of experienced coaches is here to provide you with the support and guidance you need to succeed. Results-Driven: Whether your goal is to lose weight, build muscle, or improve your overall health, Flex Foundry is your partner in achieving real, sustainable results. Ready to take your fitness to the next level? Download Flex Foundry today and start forging the body of your dreams! * App access requires paid coaching plan Terms of use: https://kahunas.io/terms-conditions Privacy policy: https://kahunas.io/privacy

What’s new

Version 2.8.8 · Updated April 13, 2026

We’ve refreshed the app with a cleaner, more modern design - along with fixes for workouts, video playback, and everyday usability.

App privacy

The developer, John Raulston, reported these privacy practices to Apple.

Data Linked to You

The following data, which may be collected and linked to your identity, may be used for the following purposes:

  • Contact Info: Email Address, Name

Used for: App Functionality

Alternatives to Flex Foundry

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

Flex Foundry vs. alternatives
App Rating Price Last updated Compare
Flex Foundry 5.0 / 5 (2 ratings) Free April 13, 2026
Empire Built 5.0 / 5 (5) Free May 23, 2025 Compare
John Jewett Coaching – Free Oct 3, 2025 Compare
Client Progress Tracker EZbook 4.6 / 5 (9) Free Aug 29, 2026 Compare
J3U Coaching 5.0 / 5 (1) Free Oct 2, 2025 Compare
Incredible: Readiness & HRV 4.8 / 5 (78) Free Oct 19, 2026 Compare
Weller: Gain Muscle with Bands 4.9 / 5 (656) Free Sep 25, 2026 Compare

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