Kairos: Strength and Cardio
Jonas Malik Langenberg Health & Fitness iPhoneiPadiPod touch
Kairos: Strength and Cardio is a free Health & Fitness app for iPhone and iPad by Jonas Malik Langenberg. Requires iOS 17.6. Updated January 9, 2026.
- Price
- Free
- on the App Store
- Size
- 21 MB
- Age 4+
- Updated
- Jan 9
- 2026 · v1.0.5
Screenshots
About Kairos: Strength and Cardio
Achieve your fitness goals with Kairos! Kairos is suitable for every fitness level: whether you're a beginner, intermediate, or pro. Choose a goal and follow your personalized training plan that always adapts to your needs and progress. Endurance, strength, or why not both? With Kairos, you'll become a true athlete! The key advantages of Kairos: - Comprehensive onboarding to create your individual training plan - Intelligent adaptation to your available time - Scientifically-based training - Combines endurance and strength training. Become a real athlete! - Takes your injuries into account - Flexible exercise alternatives with one tap - Progressive overload for continuous progress Kairos's comprehensive approach to creating your training plan includes 3 key elements: strength training, cardio training, and your schedule. Only together do all these aspects contribute to achieving your goals with the best results. STRENGTH TRAINING - Over 90 scientifically-based programs with different training methods - Personal goals and progression recommendations based on your actual performance - Your individual recovery (muscle soreness, sleep, etc.) is taken into account - Periodization and regular plan adjustments SCHEDULING - Training planning based on your available time - Adaptation between 20-minute home workouts and 90 minutes at the gym - Flexible workouts that adapt to your daily life - Intelligent integration into your daily routine EXERCISE VARIETY - Lightning-fast exercise swaps with one tap - Alternative exercises for the same muscle groups - Offline mode for training anywhere Using Kairos requires an active, paid subscription or one-time purchase. Both can be completed through the free app. Terms of use: https://kairosfitness.app/terms/ Privacy Policy: https://kairosfitness.app/privacy/
What’s new
Version 1.0.5 · Updated January 9, 2026
Improved Training Zones - Cooper test results now display detailed training zones matching your Statistics view - See all 5 pace zones (Easy, Marathon, Threshold, Interval, Repetition) with RPE values - Heart rate zones now show the full 6-zone breakdown for precise training guidance Easier Cooper Test Retakes - Retake button is now always visible on your plan home screen - Easily update your fitness data anytime, not just when your test expires Bug Fixes - Fixed exercise navigation during workouts to properly skip completed exercises - Resolved horizontal scrolling issues in various views - Improved display of overlapping events in daily check-in
App privacy
The developer, Jonas Malik Langenberg, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to Kairos: Strength and Cardio
Looking for apps like Kairos: Strength and Cardio? Here are 6 similar apps on the App Store. The highest rated is Marathon Stars: Race Journal (5.0/5), and all 6 are free to download.
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Competitive Edge Athletics
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Repp: Workout Tracker
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Fit Planner: Workout Tracker
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Squat AI Counter
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Marathon Stars: Race Journal
5.0
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4P Balance: Smart Gesund Leben
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Kairos: Strength and Cardio | – | Free | January 9, 2026 | |
| Competitive Edge Athletics | – | Free | Jan 13, 2026 | Compare |
| Repp: Workout Tracker | – | Free | Oct 21, 2026 | Compare |
| Fit Planner: Workout Tracker | – | Free | May 28, 2026 | Compare |
| Squat AI Counter | – | Free | Oct 7, 2025 | Compare |
| Marathon Stars: Race Journal | 5.0 / 5 (4) | Free | Feb 10, 2026 | Compare |
| 4P Balance: Smart Gesund Leben | – | Free | Oct 21, 2026 | Compare |