True VO2 Max — Cardio Fitness Apple

True VO2 Max — Cardio Fitness

Indoor & Lab-like Vo2 Tracking

Features & Capabilities

True VO2 Max gives you lab-like cardio fitness insights using your Apple Watch — now indoors too.

Stop getting misleading VO₂ max drops from heat, humidity, altitude, smog, or tough outdoor conditions. We correct for real-world factors so you can trust your fitness trend. And with our first-of-its-kind Indoor Treadmill VO₂ Max, you can track cardio fitness even when you run inside.

No account required. No ads.

▷ INDOOR TREADMILL VO₂ MAX

  • Estimate VO₂ max from indoor treadmill runs
  • Perfect for winter, rain, or night runs
  • See indoor fitness changes clearly — without outdoor weather noise

▷ CORRECTED VO₂, ANY WEATHER

  • Removes temperature, humidity, altitude, heat, cold, etc.
  • Raw vs Corrected shown side-by-side
  • Trust the trend, not the temperature

▷ SCIENCE-BACKED CORRECTIONS

  • Research-based penalties for weather & elevation
  • Transparent impact per condition
  • Spot real changes vs. bad weather

▷ IMPACT RESULTS

  • Automatic processing the moment you finish your workout
  • Be first to see your real fitness trend — no more confusion
  • See progress even when conditions make it look worse

▷ AUTOMATIONS

  • Apple Watch sync
  • Health app sync
  • VO2 corrections, no manual input needed

▷ WHAT'S FREE?

  • No ads
  • Unlimited runs/workouts
  • Corrected VO₂ max vs. weather
  • Raw Apple Watch VO₂ max vs. Corrected VO₂ max
  • Weather logging
  • Record your activities
  • Basic insights about your performance

▷ WHAT'S PLUS?

  • Indoor Treadmill Watch app
  • Instant weather capture as soon as you finish your workout
  • Most accurate VO2 max correction every time
  • Clear & transparent impact per weather condition
  • Improve your VO₂ max with Full Insights
  • Personalized performance takeaways
  • And more

Try Plus free for 7 days. Cancel anytime.

▷ PRIVACY

  • No account needed
  • No tracking
  • No ads
  • No personal data collected
  • No third-party SDKs
  • All logged info (runs, corrected VO2 max, etc.) remains on-device

Not a medical device. True VO2 Max is for fitness and wellness only.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

User Growth & Download Statistics

App
By:
DANIEL BLACKBURN
Rating:
3.90
(7)
0.20
Version:
2.1 Last updated: 2026-05-17
Version code:
884112085
Creation date:
2025-10-22
Compatible devices:
Size:
16.49MB
URLs:
Privacy policy
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-06-12
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
DANIEL BLACKBURN
Apple Apps Store
https://apps.apple.com/us/app/true-vo2-max-cardio-fitness/id6751441781

User Reviews

The app doesn’t see indoor workouts even with a paid membership, it’s simple won’t take into account count your treadmill runs. This app should be free until everything is fixed and works as advertised.
by US*****, 2026-05-29

It’s amazing that it factors in elevation and temperature during the run. Easy to use and set up!
by Ma*****, 2026-04-17

03.27 update: Psst! Fahrenheit vs Celsius option, please // Original: … too rudimentary. (1) Out on a run; aborted 5 minutes in. Deleted it from Health; that deletion flowed thru to all but this & 1 other app. (2) That other app has the standard delete feature, so I could remove the related data point. This app does not. (3) No *list* presenting the *dated* VO2Max readings. Instead, a chart, so you’re forced to play Tap City (tap dot to get specifics), repeatedly, to pull that history. // Thankfully, I chose the monthly sub so I could inspect the entirety of the app. Result: canceled about 9 days in. Dev, great idea! Respectfully, you’ve missed too many basics. Please → tweak, polish, and indulge user testing. Then, you’d OWN the VO2Max space! (Still) Rooting for ya
by PG*****, 2026-03-27
View all user reviews ›

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