EPOC: Sprint Science
Run Fast. Burn Fat. Live Long.
Only for iPhone
$0.99 · Designed for iPhone. Not verified for macOS.
iPhone
EPOC is the first sprint training app built around the science of the afterburn effect — the phenomenon where your body continues burning fat for hours after a short, intense sprint session.
Most fitness apps are built for athletes. EPOC is built for people who want to live longer, move better, and burn visceral fat — the dangerous deep belly fat linked to chronic disease. You don't need to be fast. You just need to show up.
THE SCIENCE
EPOC stands for Excess Post-Exercise Oxygen Consumption. Sprint training triggers a metabolic response that no amount of steady-state cardio can match — flooding your system with growth hormone, torching visceral fat, and building the fast-twitch muscle that keeps you powerful as you age.
WHAT'S INSIDE
Sprint Sessions
- Guided sprint sessions with warmup, rep tracking, and rest timers
- Vibration alerts so you never have to stare at your screen
- Live rep timing and speed tracking in meters per second
- Motivational messages to keep you locked in
Active Recovery
- 7-exercise mobility protocol designed for sprint athletes
- Illustrated exercise guides with technique cues
- Tracks what you've completed and remembers your progress
Progress Tracking
- Speed chart showing your improvement over time
- Weekly volume goals calibrated to your experience level
- Estimated calories burned per session
- Full session history
Smart Home Screen
- Daily recommendation engine — Sprint, Recovery, or Rest
- Weekly session tracker so you never lose your streak
- Personalized to your experience level and training history
WHO IT'S FOR
EPOC is for the fitness enthusiast who already has a routine and wants to add something that actually moves the needle on body composition and longevity. If you follow the work of Peter Attia, Dr. Sean O'Mara, or Mark Sisson — you already know why sprinting matters. EPOC puts that science into practice.
GET STARTED
Set your experience level, complete your first warmup, and sprint. Your first session takes less than 20 minutes. Your body will feel it for the next 24 hours.
Ratings & Reviews
- Streamlined onboarding with EPOC science explainer
- Improved sprint session controls — add time, pause, or skip rest
- Cancel now offers option to save partial session progress
- Fixed sprint defaults on first session
- Performance improvements and bug fixes
The developer, Russell Whitney, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Health & Fitness
- Contact Info
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Russell Whitney
- Size
- 35.7 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Russell Whitney
