Your Adaptive Triathlon Training Plan operating with Apple, Garmin, Wahoo and Strava data. Ensuring you hit race day at peak fitness.
First 30 days for free
Old-school training plans ignore how your body actually feels. Theron fixes that.
Old-school training plans ignore how your body actually feels after 4 hours of sleep.
Injury or overtraining from rigid plans is the main reason beginners quit before race day.
Life happens. Missed a session? Theron automatically recalculates your week so you don't have to.
Always know your fitness trend. See exactly how your swim, bike, and run capacity improves.
Theron uses a scientifically based algorithm to instantly adjust training intensity and duration. Reducing injury & overtraining risk and ensuring optimised training load.
Theron plans around your life (availability) as opposed to you planning your life around your training plan.
Join hundreds of triathletes who trained smarter and crossed the finish line stronger.
"I finally finished my first Sprint triathlon thanks to Theron's adaptive schedule. The app adjusted my training based on my recovery and I felt strong on race day."
"The Apple Watch integration is seamless. Theron automatically adjusts workouts based on my sleep and HRV. A big change compared to my previous way of training. My times have dropped noticeably."
"As a beginner Theron made triathlon training feel manageable. The app plans around my busy schedule and keeps me from overdoing it. Went from zero to finishing a 70.3 in 8 months!"
"The adaptive planning is a game-changer. Load adjusts automatically based on recovery, which feels really good. My Garmin data finally means something to me."
"I've tried other apps but Theron's focus on real-time health data makes it stand out. It's like having a personal coach, but less of a hassle and with the data to back it up."
"Apple Watch integration works perfectly. Theron takes my training data, rebuilds my plan each week, and I've cut 11 minutes off my Olympic-distance time in one season. Absolutely worth it."
"I finally finished my first Sprint triathlon thanks to Theron's adaptive schedule. The app adjusted my training based on my recovery and I felt strong on race day."
"The Apple Watch integration is seamless. Theron automatically adjusts workouts based on my sleep and HRV. A big change compared to my previous way of training. My times have dropped noticeably."
"As a beginner Theron made triathlon training feel manageable. The app plans around my busy schedule and keeps me from overdoing it. Went from zero to finishing a 70.3 in 8 months!"
"The adaptive planning is a game-changer. Load adjusts automatically based on recovery, which feels really good. My Garmin data finally means something to me."
"I've tried other apps but Theron's focus on real-time health data makes it stand out. It's like having a personal coach, but less of a hassle and with the data to back it up."
"Apple Watch integration works perfectly. Theron takes my training data, rebuilds my plan each week, and I've cut 11 minutes off my Olympic-distance time in one season. Absolutely worth it."
Theron integrates with your favorite Platforms and Devices, including Apple Health, Apple Watch, Garmin, Strava and Wahoo.
Whether you are training for your first Sprint Triathlon or your Full Distance Ironman, Theron builds the plan around your needs.
Try Theron 30 Days for free
For the price of 3 gels per month:
$69.90 billed annually
For the price of 2 gels per month:
Free calculators to sharpen your race strategy. No sign-up required.
Theron is an adaptive triathlon training app that builds dynamic schedules for Garmin and Apple Watch users. Unlike static PDF plans, Theron uses a smart algorithm to analyze your health data (HRV, sleep, and activity) to automatically adjust your daily swim, bike, and run workouts based on your real-time recovery.
Adaptive training is a dynamic method where your workout schedule changes based on your recovery. Theron uses an algorithm to analyze your sleep and heart rate variability (HRV). If your recovery is low, the app automatically reduces intensity to prevent overtraining. Something static PDF plans cannot do.
Probably, Yes! Theron integrates directly with Apple Watch, Garmin and Wahoo. And if you have a different device, we also connect with Strava or Apple Health, so we can still track your training progress.
Absolutely. Theron provides the workout structure (duration and intensity) in the form of a .FIT or .ZWO. You can manually import these workouts on platforms like Zwift, Wahoo or a treadmill, and as long as the data writes back to Theron, we will track your progress.
Not at all. Theron was built with beginners in mind. We use simple language, not complicated jargon. Our personalized training plans will gradually build your fitness safely, ensuring you don't do too much too soon.
Yes. You have full control over your weekly schedule. Theron builds the plan around your availability by looking at your daily availability and your sports preference.
Your privacy is our priority. Theron processes your health data locally on your device wherever possible. We do not sell your personal health data to third parties. See our Privacy Policy.
The 30-day free trial gives you full access to Theron Pro. You can generate a custom race plan, use the personalized workout export features, and experience the daily adaptive adjustments. No features are locked during the trial.
Or email us directly at: hello@theron.app
Scan this QR code with your iPhone to download Theron from the App Store
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