TrueZone

Fitness testing
made easy

Affordable, professional fitness testing. No lab required. Get started in minutes.

TrueZone mobile app and web app

Anywhere, anytime

The lab at your fingertips.

Performing regular fitness assessments is essential, but traditional lab tests are not easily accessible and require expensive equipment and professional supervision. This severely limits coaches and trainers from accurately monitoring and enhancing performance on a regular basis, ultimately hindering progress and overall development.

Driftlines' proven technology brings the lab to your fingertips, allowing you to perform fitness testing with only a heart rate tracker and a treadmill, thus enabling you to perform regular fitness testing.

TrueZone fitness testing

Simple, quick and easy.

Get a complete fitness report in 20 minutes. Run for 10 minutes, rest for 10 minutes. Simple as that. And it's easy to perform, so it serves as a great warmup before a workout.

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Tested & verified

Results you can trust.

Built for both personal and professional needs, our analytics provide precise and dependable insights you can count on. To learn more, check out our validation studies.

Lab-Tested Reliability

Our method has been validated in lab settings, ensuring reliable results.

High-Grade Precision

Experience gold-standard accuracy without the need for costly equipment.

Patented Technology

Our method is patented, unique and unmatched anywhere else.

Driftline vs lab testing

The best alternative to lab testing.

It's quicker, more affordable, easier to access and less demanding. It's really a no-brainer.

50% faster process

Complete a test in 20-30 minutes vs 60 minutes in conventional VO2Max lab testing.

60% lower price per test

Costs 25-40$ per test vs 100$+ per test in conventional VO2Max lab testing.

99% lower start-up cost

Only requires a heart rate tracker and access to a treadmill. No masks and no needles.

30% less demanding

Average RPE (rate of perceived effort) of 14/20 while V02Max tests score 20/20.

Essential insights

Metrics that matter.

Actionable insights and tailored metrics that you can rely on to optimize your workouts, track your progress and reach your goals.

Endurance

The first true measure of aerobic endurance on a scale of 0 - 100%.

Exercise thresholds

All metabolic thresholds, including VT1, VT2, VO2max and maximum speed.

Heart rate zones

Personalized heart rate zones based on threshold alignment.

Runscore

A universal fitness metric adjusted for age, gender, and distance.

Metabolism

Resting metabolic rate, calorie expenditure and fat metabolism.

Race time predictions

Estimated best effort over any distance, ranging from 100 meters to the marathon.

Tested by professionals

What people are saying.

Arnar Pétursson

Arnar Pétursson

53 times national running champion.

Driftline gives me more accurate fitness information than everything else I have tried.

Þórólfur Ingi Þórsson

Þórólfur Ingi Þórsson

Marathon runner

Driftline gives me very accurate and narrow heart rate zones that I have found very helpful to maximise the benefits from each training session.

Guðmundur Bergsteinsson

Guðmundur Bergsteinsson

Off-road runner

Driftline's live recovery feature has really helped me optimize my high-mileage, off-road training.

Enough talking

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