50 of 50 early-access places left · closes 30.09 — get 12 months free
BreezeLabs
Early access · only 50 runners · closes 30.09

Stop estimating.
Start measuring.

Make every run count.

Lab-grade VO2max, zone 2, lactate threshold and breathing-rate measurements on your Apple Watch or Garmin — using only your iPhone and AirPods.

  • Lab-grade results
  • No lab
  • No mask
Get 12 months free → See how it works

50 of 50 places left · free · no payment details needed

50

Limited to the first 50 runners. Get 12 months of BreezeTracking free, plus a chance for 5 runners to be picked at random to receive 2 months of personalised feedback on your breathing data.

BreezeTracking app showing breathing rate charts
Measured, not estimated
VO2max
58.4
ml/kg/min
Zone 2
146
bpm
Lactate threshold
171
bpm
BRPM
42
breaths/min
Lab-grade measurements
AirPods + Apple Watch or Garmin
Built on years of breathing-detection research
01 Lab-grade accuracy

What elite athletes get in the lab, now available in your app.

Your watch estimates your training zones. BreezeTracking measures them.

02 How it works

Your performance lab, built into every run

No lab visit and no breathing mask.

01

Install BreezeTracking

Set up the app on your iPhone and on your Apple Watch or Garmin.

02

Connect and run

Pair your AirPods and start your run.

03

Review your measurements

After the run, review your breathing and performance measurements in the app.

You can keep listening to music or podcasts while BreezeTracking measures your breathing.

03 Measurements

Four lab-grade measurements from your own running.

VO₂max

Understand your maximal aerobic capacity and track how your endurance develops over time.

Zone 2

Accurately identify your personalised Zone 2 — one of the most important training zones for building aerobic endurance.

Lactate threshold

Use your lactate threshold to guide threshold sessions, higher-intensity training and race pacing.

Breathing rate

Track how your breathing rate changes throughout each run and identify your personalised breathing zones.

04 Run modes

One app. Two ways to understand your running.

Normal run

Run at your usual planned pace and see the breathing behind it.
  • Usual planned pace
  • Breathing-rate evolution
  • Average BRPM
  • Time at different breathing frequencies
  • Duration and distance
  • Colour-coded breathing map
  • Time spent at different breathing zones

Graded run

Follow one simple, app-guided running protocol.
  • Unlocks lab-grade insights into your VO₂max, personalised Zone 2, lactate threshold and breathing rate.
05 Inside the app

Every run gives you accurate information.

Route and breathing together
06 Research

The science existed. Accessible technology did not.

Personalised zones from your zone 2 and lactate threshold can guide training more individually than generic heart-rate percentages.

Read more about the study

Personalised training zones built from zone 2 and lactate threshold can provide more individual guidance than generic percentages of heart rate.

In a small 12-week randomised study, exercise prescribed from ventilatory thresholds was compared with training based on percentages of heart-rate reserve. All 12 participants in the threshold-based group met the study’s VO2max responder criterion, compared with 5 of 12 in the heart-rate-reserve group.

This is encouraging preliminary evidence from a small sample, not a guarantee of individual results.

Read the study

Traditionally this required

  • A $200–$400 visit to a sports laboratory
  • A breathing-mask test or blood lactate test
  • Specialist equipment, supervision and a scheduled appointment

BreezeTracking

Your AirPods capture the breathing signal.

Your iPhone supports the analysis.

Your Garmin or Apple Watch starts the measurement.

Early access

Be among the first 50.

Twelve months of BreezeTracking free. No payment details, no commitment.

  • 12 months free
  • Early access
  • Lab-grade measurements
  • 5 runners drawn for 2 months of personalised breathing feedback

50 of 50 places left · Closes 30.09

When they are filled, this early-access offer closes.

Get 12 months free
07 Waitlist

Get 12 months free.

The first 50 runners who join the waitlist will receive 12 months of BreezeTracking free.
50 of 50 places available. The offer closes on 30 September or as soon as all 50 places are claimed.

Early access supports Apple Watch and Garmin. Other watches can join the list and we will contact you when support is ready.

What happens next: you get one confirmation email straight away, then later your code to download the app for free. Tick the box and you also get occasional updates from us — unsubscribe any time.

We store your name, email and watch type to run the early-access programme. BreezeLabs AG is the controller; you can withdraw consent or have your data deleted at any time. See our privacy policy.

08 FAQ

Before you join.

What do I need to use BreezeTracking?

An iPhone with the BreezeTracking app, AirPods and an Apple Watch or Garmin. No lab visit, breathing mask or extra dedicated hardware is required.

How do I get my VO₂max, Zone 2 and lactate threshold?

Complete one valid graded run in the app.

How do I complete a graded run?

It’s simple: select the graded-run function in the app and follow the guided protocol.

Can I still listen to music while it measures?

Yes. Music or podcasts can continue playing while BreezeTracking measures your breathing through AirPods.

How is this different from heart-rate training?

Breathing adds a faster, effort-related signal alongside heart rate. Heart rate remains useful — breathing gives you an additional, more immediate view of effort.

What does the early-access offer include?

The first 50 runners to join the waitlist receive 12 months of BreezeTracking free, with early access to the pilot version of the app.

Stop estimating. Start measuring.

Make every run count.

Get 12 months free
Get 12 months free

50 of 50 places left · closes 30.09