# STEELEFIT: Muscle Building App — Strength Training and Workouts > Science-based strength training and hypertrophy programs for muscle growth. (iPhone/iPad app by Shock Training LLC.) - Source: https://appshunter.io/ios/app/steelefit-muscle-building-app/id6733223865 (this page in markdown: same URL + `.md`) - Developer: [Shock Training LLC](https://appshunter.io/developer/1442182126) - Category: Health & Fitness, Sports - Price: Free with in-app purchases - Rating: 5.00/5 from 9 App Store ratings · 6 written reviews indexed - Age rating: 17+ - Requires: iOS 16.6 · 49 MB - Languages: American English, Dutch, French (France), German (Germany), Italian, European Spanish, Turkish - Released: 2024-10-25 - Data updated: 2026-08-17 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/steelefit-muscle-building-app/id6733223865/reviews.md ## What is STEELEFIT? STEELEFIT is a complete muscle building and hypertrophy training system powered by the proven TEN3 Method - Time Under Tension, flawless Execution, and pushing Near-Failure for maximum results. Get science-backed programs, step-by-step coaching, and targeted workouts for every major muscle group. Programs Inside • Bigger Arms in 12 Weeks - Precision blueprint for serious biceps and triceps growth. • Back 1.0 - Build powerful lats, mid-back, and stabilizers. • Shoulders 1.0 - Develop round, defined delts and traps. • Chest 1.0 - Target all chest fibers for balanced strength and shape. • Arms 1.0 - Foundational program for arm size and definition. • Lower Body 1.0 - Strengthen and define glutes, quads, hamstrings, and calves. • MGB 1.0 - Complete full-body muscle growth system including all programs above. Why STEELEFIT Works 1. Time Under Tension (TUT) - Control every rep for maximum hypertrophy. 2. Push to Near-Failure - Smash plateaus without sacrificing form. 3. Smart Exercise Selection - Target optimal joint angles for faster growth. 4. Immersive Coaching - Real-time cues, setup tips, and execution mastery. Perfect For • Beginners who want a proven, clear plan. • Lifters stuck on plateaus. • Advanced trainees craving research-based challenges. Key Features • Structured programs for targeted growth. • Guided workouts with coaching in every rep. • Science-based programming for sustainable results. • Lifetime access or flexible monthly plans. Stop guessing. Start growing. Stop Counting Reps. Make Reps Count. Download STEELEFIT now and start your transformation today. END USER LICENSE AGREEMENT https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ## Key features - Science-based muscle building programs - TEN3 Method for hypertrophy - Targeted workouts for major muscle groups - Step-by-step coaching - Lifetime access or monthly plans ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | MGB 1.0 - Monthly (All-Access) | $21.99 | per month | | MGB 1.0 - Weekly (All-Access) | $5.99 | per 7 days | | Bigger Arms in 12WK (Monthly) | $14.99 | per month | | MGB 1.0 (Monthly) | $21.99 | per 7 days | | Arms 1.0 (Monthly) | $11.99 | per month | | Chest 1.0 (Monthly) | $11.99 | per month | | Shoulders 1.0 (Monthly) | $11.99 | per month | | Lower Body 1.0 (Monthly) | $11.99 | per month | | Back 1.0 (Monthly) | $11.99 | per month | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Chest 1.0 - Unlimited | $59.99 | one-time | | Bigger Arms in 12WK (Lifetime) | $139.99 | one-time | | MGB 1.0 (Unlimited) | $219.00 | one-time | | Lower Body 1.0 (Unlimited) | $59.99 | one-time | | Back 1.0 (Unlimited) | $59.99 | one-time | | Shoulders 1.0 (Unlimited) | $59.99 | one-time | | MGB 1.0 | $199.00 | one-time | | MGB Arms 2.0 – 60% OFF | $49.99 | one-time | | MGB Chest – 60% OFF | $49.99 | one-time | | STEELEFIT™ Training Tips | $9.99 | one-time | | STEELEFIT™ Exercise Vault | $79.99 | one-time | | MGB™ Shoulders – 50% Off | $49.99 | one-time | | STEELEFIT™ Workout Library | $129.99 | one-time | | MGB™ Lower Body | $49.99 | one-time | | MGB™ Back – 60% OFF | $49.99 | one-time | | MGB™ | $199.00 | one-time | | Arm Shred: Max Muscle Growth | $129.99 | one-time | ## Recent user reviews (6 of 6) All indexed reviews: https://appshunter.io/ios/app/steelefit-muscle-building-app/id6733223865/reviews.md ### 5/5 — Best Workout Program *2025-08-31* Steel fit workout program is one of the best programs I have been part of. Hayden Steel’s workout videos and his explanation / instruction on how to do the lift, why the lift is done a certain way is phenomenal. The time and effort he has put into this APP shows how much he believes and cares about his program. I am 51 and the workout is joint friendly and at the end of each workout you feel the work you put in. I would recommend this program to anyone looking for a program different than the same old programs everyone else is doing. Trust me this is one of a kind. ### 5/5 — Worth Every Penny!!! *2025-03-25* This is, by far, the best course you can get anywhere on building strength and muscle. Hayden’s passion for imparting his knowledge to his students is truly inspiring. Over the years, I’ve spent way too much money on personal trainers who literally did nothing more than make up different workout routines and stand next to me in the gym counting reps. Since starting the MGB program a few weeks ago, I’m already experiencing new muscle growth and a renewed enthusiasm for working out. I finished each workout now with my muscles completely fried yet I can’t wait to get back into the gym the next day! I only wish I had known about MGB sooner. Thanks Hayden!!! ### 5/5 — Great app, Great workouts *2025-01-29* I can tell a lot of time and effort was put into this! The app is pretty straight forward and very detailed. I love that if I have questions, I can ask in the community and Hayden himself will answer. The workouts definitely put your muscles into growth mode, and I’ve seen a difference in the way I look and feel by implementing Hayden’s instruction. This app is a personal trainer in your pocket! ### 5/5 — Kirk Beatty *2025-01-16, version 24.0.0* Hayden is the real deal, he gives a ton of information and explains each detail extensively. awesome ### 5/5 — Arms program *2024-11-14* This is one of the best programs I have ever done. The amount of content is ridiculous. This is the best program in the App Store. **Developer response:** We are glad you’re loving this program! ### 5/5 — Great workout info and knowledge *2024-11-12, version 1.0* Love his approach. The muscle you work gets hit hard and nothing else is sore that shouldn’t be. I recommend this app and following Hayden. Looking forward to more coming in the future. ## Frequently asked questions about STEELEFIT ### What is the STEELEFIT TEN3 Method? The TEN3 Method in STEELEFIT stands for Time Under Tension, flawless Execution, and pushing Near-Failure. This scientifically proven approach is designed to maximize muscle hypertrophy and growth. ### Does STEELEFIT offer programs for specific muscle groups? Yes, STEELEFIT offers structured programs for various muscle groups including arms, back, shoulders, chest, and lower body. There is also a complete full-body muscle growth system available. ### What kind of coaching does STEELEFIT provide? STEELEFIT offers immersive coaching with real-time cues, setup tips, and execution mastery for every rep. This guided approach ensures you perform exercises correctly for optimal results. ### What are the subscription options for STEELEFIT? STEELEFIT offers flexible monthly plans for specific programs like Lower Body 1.0, Shoulders 1.0, Chest 1.0, and Arms 1.0, priced at $11.99/month. An all-access weekly subscription for MGB 1.0 is available for $5.99/P7D. ### Is STEELEFIT suitable for beginners? Yes, STEELEFIT is perfect for beginners who want a proven and clear plan to start their muscle-building journey. The science-based programs and guided coaching are designed to be accessible. ### What devices is STEELEFIT available on? STEELEFIT is available on iPhone and iPad, providing a consistent experience across Apple devices. ### How often is STEELEFIT updated? STEELEFIT was last updated on December 17, 2025, with version 48.0.0. This indicates regular updates to improve the app and its content. ### What is the age rating for STEELEFIT? STEELEFIT has an age rating of 17+, suggesting mature content or themes that are appropriate for adults. ## Version history (last 5 releases) ### 54.0.0 — 2026-08-15 Build muscle faster with STEELEFIT, the ultimate strength training and workout app. Train at the gym or home with science-based programs for arms, shoulders, legs, and more. ### 48.0.0 — 2025-12-17 Bug fixes and improvements ### 45.0.0 — 2025-11-13 Bug fixes and improvements ### 43.0.0 — 2025-10-07 Bug fixes and improvements ### 41.0.0 — 2025-09-17 Bug fixes and improvements ## Apps similar to STEELEFIT | App | Rating | Price | Category | | --- | --- | --- | --- | | [Fitonist: Gym Workout Tracker](https://appshunter.io/ios/app/fitonist-gym-workout-tracker/id6443644593) | 4.8 (221) | Free | Health & Fitness | | [Gym Workout For Men](https://appshunter.io/ios/app/gym-workout-for-men/id1440431329) | 4.9 (2,615) | Free | Health & Fitness | | [Muscle Booster Workout Tracker](https://appshunter.io/ios/app/muscle-booster-workout-tracker/id1446447749) | 4.5 (136,344) | Free | Health & Fitness | | [Stronger - Gym Workout Planner](https://appshunter.io/ios/app/stronger-gym-workout-planner/id1621719397) | 4.8 (16,931) | Free | Health & Fitness | | [Fitbod: Gym & Fitness Planner](https://appshunter.io/ios/app/fitbod-gym-and-fitness-planner/id1041517543) | 4.8 (280,231) | Free | Health & Fitness | | [Gym Workout Planner For Women](https://appshunter.io/ios/app/gym-workout-planner-for-women/id1349471733) | 4.9 (4,961) | Free | Health & Fitness | ## More apps by Shock Training LLC - [SHOCK: Workouts & Fitness](https://appshunter.io/ios/app/shock-workouts-and-fitness/id1442182127) All apps by Shock Training LLC: https://appshunter.io/developer/1442182126 ## Related topics [muscle charge](https://appshunter.io/ios/topics/muscle-charge) · [build muscle training](https://appshunter.io/ios/topics/build-muscle-training) --- *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 2026-08-17.*