Kernwerk® Functional Fitness
Kernwerk GmbH Health & Fitness iPhoneiPadiPod touch
Kernwerk® Functional Fitness is a free Health & Fitness app for iPhone and iPad by Kernwerk GmbH. Rated 5.0/5 from 1 ratings. Requires iOS 15.0.
- Rating
- 5.0
- 1 ratings
- Price
- Free
- on the App Store
- Size
- 80 MB
- Age 4+
- Updated
- Sep 14
- 2026 · v2026.1.8
Screenshots
About Kernwerk® Functional Fitness
===== Functional Fitness from Germany ===== Functional Training? Muscle building? HIIT? Circuit Training? Bodyweight Training? Kettlebell training? The Kernwerk® app is your personal fitness coach, calculating a new workout for you every day. ===== SUMMARY ===== We are more than a simple at-home fitness plan. Kernwerk® is a unique fitness app: we offer you the world's best AI coach for real and flexible functional training with bodyweight and equipment. We pick you up at your fitness level, offer you perfect workouts and maximum motivation through challenges. No matter if in the home gym, in the gym or in the box. ===== HOW IT WORKS ===== Our professional coaching team creates a unique Daily Workout for every day. This way we combine professional workout planning with maximum workout variety and prevent boredom. The AI in our app customizes the Daily Workout before each workout based on your performance, equipment and gear: Before each workout, you can decide in real time what options you currently have available. Common equipment combinations are saved in equipment profiles (e.g. "at home", "gym"). WE MOTIVATE: NEW DAILY WORKOUTS Let our coaching team create a completely new fitness workout plan for you every day: We call it a "Daily Workout," or WOD. You will never do a workout twice. WE GUIDE YOU: 100% TAILORED Our AI customizes every single exercise in each of your workouts (WOD) for you. Through your feedback after the workout, each subsequent workout is even better suited to your personal strengths and weaknesses. WE HELP YOU: AS FLEXIBLE AS YOUR EVERYDAY LIFE Train with or without equipment! You can decide before each workout what you have available today: kettlebell, dumbbell, sandbag, TRX, pull-up bar or barbell. We have over 40 pieces of gym equipment that you can incorporate into your workout. 800+ FUNCTIONAL TRAINING EXERCISES Never done Marc Lauren, Freeletics, CrossFit or other functional training? HIT or circuit training of different muscle groups is difficult for you? Kernwerk® offers you German-language video instruction for functional training: You'll get tutorials from our fitness coach on basic exercises, strength training and muscle building, as well as tips on mobilization. DYNAMIC TRAINING PLAN We do not work with a classic fitness training plan! You can decide every day how and where you want to train. To the gym? Or rather a home workout with bodyweight? Decide which workout suits you today. SHORT & LONG TERM RESULTS Through our HIT training you will quickly become super fit and celebrate enormous successes. We are not a 10-week fitness plan - but with us you are motivated even after months and years, avoid the yo-yo effect and you stay healthy, fit and efficient until old age. APPLE HEALTH You can now activate the connection to Apple Health in the settings of the Kernwerk® app. This connection will transmit your workout duration to Apple Health. This way you can close your workout "ring" and let Apple know how busy you've been. IN-APP PURCHASES Without a membership (subscription), you can complete our workouts and strength plans for free anytime. With a membership (subscription), individual HIT/HIIT workouts are available to you. We offer the Kernwerk® subscription in three terms: 3, 6 or 12 months. You can find our privacy policy at https://kernwerk.de/datenschutz and our terms of use and https://kernwerk.de/agb. We wish you success in your training and a lot of fun with our workouts.
What’s new
Version 2026.1.8 · Updated September 14, 2026
In this version, we've fixed a few bugs to improve the app's stability and performance.
App privacy
The developer, Kernwerk GmbH, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers: User ID, Device ID
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Identifiers: Device ID, User ID
- Purchases: Purchase History
- Usage Data: Product Interaction
- Diagnostics: Crash Data, Performance Data, Other Diagnostic Data
- Contact Info: Email Address, Name
Used for: Developer’s Advertising or Marketing, Analytics, App Functionality, Other Purposes
Alternatives to Kernwerk® Functional Fitness
Looking for apps like Kernwerk® Functional Fitness? Here are 6 similar apps on the App Store. The highest rated is BELLS, Kettlebell Workouts (4.8/5), and all 6 are free to download.
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WOD Timer: Functional Fitness
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Rise Strength & Conditioning
4.4
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Kettlebell Workout Program
-
Fitivity Functional Training
-
Kettlebell Training App
4.7
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BELLS, Kettlebell Workouts
4.8
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Kernwerk® Functional Fitness | 5.0 / 5 (1 rating) | Free | September 14, 2026 | |
| WOD Timer: Functional Fitness | – | Free | Aug 4, 2026 | Compare |
| Rise Strength & Conditioning | 4.4 / 5 (5) | Free | May 1, 2026 | Compare |
| Kettlebell Workout Program | – | Free | Nov 7, 2024 | Compare |
| Fitivity Functional Training | – | Free | Sep 16, 2026 | Compare |
| Kettlebell Training App | 4.7 / 5 (43) | Free | Aug 17, 2025 | Compare |
| BELLS, Kettlebell Workouts | 4.8 / 5 (27) | Free | Oct 1, 2025 | Compare |