J3U Coaching vs Flex Foundry
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
J3U Coaching
This app provides a comprehensive physique coaching service led by experienced professionals. It offers tools for check-ins, workout logging, nutrition tracking, and progress review to help clients achieve their fitness goals. Access requires a paid coaching plan.
- Client check-ins
- Workout logging
- Nutrition tracking
- Progress review
- Physique coaching
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J3U Coaching, led by John Jewett and Luke Miller, sets the highest standards in physique coaching, combining experience in the field with advanced education to deliver an exceptional coaching service for all our clients. Our in app experience offers: Check-ins Workout logging Nutrition tracking Progress review and more. * App access requires paid coaching plan Terms of use: https://kahunas.io/terms-conditions Privacy policy: https://kahunas.io/privacy
Flex Foundry
This app offers personalized meal plans and workout routines designed to help you achieve your fitness goals. It provides weekly check-ins and expert guidance for a results-driven approach to health and wellness.
- Custom meal plans
- Tailored workout routines
- Weekly check-ins
- Personalized feedback
- Expert guidance
- Accountability support
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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
Screenshots
Verdict
The clearest difference is monetization model: J3U Coaching at free with in-app purchases against Flex Foundry's paid. On price, rating, ratings volume and update cadence there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. J3U Coaching sells 1 in-app purchase, starting at $99.99 per month and Flex Foundry sells 1 in-app purchase, starting at $200.00 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for J3U Coaching against 5.0 for Flex Foundry. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
J3U Coaching ships an update every 5 weeks, Flex Foundry every 2 months. The most recent releases landed on June 10, 2026 and June 12, 2026 respectively.
| Parameter | J3U Coaching | Flex Foundry |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (2 ratings) |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 5 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 48 MB | 52 MB |
| Age rating | 17+ | 17+ |
| Developer | J3 Sports RD Inc | John Raulston |
Customer experience
J3U Coaching
Flex Foundry
In-app purchases
J3U Coaching
- Monthly$99.991 Month
Flex Foundry
- Monthly Coaching$200.001 Month
