Recover intelligently.
Kontrast is a small, reusable sensor that sits under any ice bag or heat pack at an injury site, or on your skin during a sauna or cold plunge.
It learns how your body responds to hot and cold recovery, using those patterns to help you optimize performance and return from injury.
Every body is unique.
Your recovery
should be too.
Every athlete responds differently to hot and cold. Fixed temperatures and timers are general guidelines; they don’t account for your body, the area you’re treating or your starting condition. Kontrast uses your response to optimize recovery.
Your response zone is unique.
achieved
Response Zone
in place
restored
Every point on your thermal response curve is unique to the athlete. A 300 lb lineman can have a very different icing curve than a 100 lb gymnast. A fixed timer doesn’t account for those differences. Kontrast measures your response, and AI turns it into guidance on when to keep icing, when to stop and how you rewarm.
Recovery for the area
that needs it.
Your ice bag. Your heat pack.
Guidance built around you.
Place the reusable sensor pad beneath any ice bag or heat pack. Kontrast learns how the area you’re treating cools and rewarms.
Kontrast AI guidance combines your actual response with recovery research to help you follow your plan, or your treating practitioner’s, with session guidance and reminders throughout the day.
Small sensor.
Huge impact.
Meet Kelvin.
Your AI recovery coach.
In the app, or in the AI you already use.
Your target thermal response has been achieved.
6 minutes
12 minutes
20 minutes after removing ice
Based on your recovery trends, we’re going to switch to heating tomorrow.
Know how long to ice or heat, and when to switch. Kelvin follows your body’s response, not a generic timer.
Chat, check in on pain, log photos and get reminders. Your sessions and check-ins build a personal recovery score over time.
Follow your care team’s plan, or sport- and injury-specific protocols. Share sessions, pain trends, photos and notes in one place.
Prefer ChatGPT or Claude? Bring Kelvin and your recovery history with you. You choose what’s shared.
Kelvin supports recovery decisions. He doesn't diagnose or assess injuries.
Don’t stay cold
longer than you need to.
The right dose of cold, without overdoing it. Kontrast learns how your body responds to help you know when you’ve done enough.
Kontrast learns how your body responds so you know when you’ve done enough. More cold isn’t always better; the goal is the right dose, not the longest session.
A training room,
wherever you are.
Kontrast guides your recovery whether you’re at home, on the road, at practice, or in the training room.
Kontrast guides your recovery at home, on the road, at practice or in the training room, helping you put your team’s athletic therapist’s advice into practice.
Built for the individual.
Stronger with a team.
Kontrast supports athletes recovering independently. When you have an athletic therapist, team doctor or care team, it connects their guidance with your sessions at home, bridging the gap between appointments and daily recovery.
Explore Kontrast for TeamsHear when things
are heating up.
The first 500 people to join the waitlist will get an introductory price of around $100 per sensor, plus Kelvin AI free for two years with their sensor purchase.