CardioForge Workout Tracker

Finally, a fitness tracker built for indoor workouts that actually gets your calories right.

Tired of subscription apps that guess your calorie burn? CardioForge uses the scientifically-proven Keytel equation with gender-specific formulas to deliver laboratory-grade accuracy for your martial arts, HIIT, yoga, and strength training sessions.

Why CardioForge?

Scientific Precision
Real calorie calculations based on your age, weight, gender, and live heart rate data - not generic estimates. The same methodology used in exercise physiology labs.

Built for Indoor Athletes
Over 40 specialized workout types across martial arts, HIIT, boutique fitness, strength training, dance, and more. No GPS tracking here.

Heart Rate Integration
Connect any Bluetooth heart rate monitor (Polar H10, Wahoo TICKR, chest straps, arm bands) for continuous monitoring throughout your workout. Heart rate monitor required.

Live Activities & Dynamic Island
Track your progress right from your lock screen with real-time heart rate, calories, and duration updates.

Core Features

Workout Tracking:
- 36 workout types: BJJ, Boxing, CrossFit, HIIT, Hot Yoga, Indoor Cycling, Kettlebell, and more
- Real-time heart rate monitoring with color-coded zones
- Precise workout editing with trim and recovery tools
- Smart pause detection and gap handling

Apple Health Integration:
- Automatic workout syncing with detailed metadata
- Heart rate sample export (every recorded beat)
- Seamless data integration with your health ecosystem

Privacy First:
- All data stored locally on your device
- No user tracking or data collection
- Your workouts, your data, period

Try Free for 14 Days

Full access to all Pro features. No credit card required. Test compatibility with your heart rate monitor risk-free.

Introductory Pricing: $3.99 (one-time purchase)
Skip the $5-15/month subscription trap. Own your fitness data.

Perfect For:
- Martial artists (BJJ, Boxing, MMA, Karate, Taekwondo)
- Boutique fitness enthusiasts (Barre, Spin, CrossFit)
- HIIT and circuit training athletes
- Yoga and Pilates practitioners
- Strength and functional training
- Dance fitness and Zumba
- Anyone who wants accurate indoor workout tracking

Requirements:
- iPhone or iPad running iOS 18.0 or later
- Bluetooth Low Energy heart rate monitor

Any BLE heart rate device should work, but compatibility varies by manufacturer. That's why we give you 14 days to test yours for free.

What Users Say:
"Finally, calorie counts I can trust. The heart rate integration is flawless."

"Been waiting for something like this for my BJJ training. Worth every penny."

"Love that it's not another subscription. Just works."

Download now and discover what scientifically-accurate fitness tracking feels like.

Terms and Conditions

By downloading and using CardioForge, you agree to Apple's standard Licensed Application End User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Additional Terms:
- The app requires a Bluetooth Low Energy heart rate monitor to function
- All personal data is stored locally on your device - we collect no user data
- The 14-day free trial begins on first app launch with no credit card required
- In-app purchases are processed by Apple and subject to their terms
- The app is for informational purposes only and not a substitute for professional medical advice

For support, contact us through the App Store.