Comparison

VO2 Max vs UltraVO2Max

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

VO2 Max

Track your body's oxygen absorption at peak effort with detailed insights and performance estimates for running and cycling. Visualize trends, compare personal bests, and understand your cardio fitness level with a redesigned dashboard and Apple Watch integration.

Highlights
  • VO2 max estimation for running and cycling
  • Performance estimates (W/kg, FTP)
  • Redesigned dashboard with trends and personal bests
  • Interactive charts with customizable date ranges
  • Apple Watch complications and iPhone widgets
  • Cardio fitness level comparison by age and sex
Features
Read full description

VO₂ Max shows how much oxygen your body can absorb at peak effort. The redesigned dashboard puts the latest measurement, rolling averages, and your personal best in one view so you immediately see how training affects cardio fitness. ESTIMATES FOR RUN & BIKE - New tab turns VO₂ max + weight + power into W/kg and FTP estimates for running and cycling. - Compare modeled race times and power against your actual HealthKit FTP/power. NEW DASHBOARD - Trend cards highlight the 7-day average, any selected range, and your best value with percentage deltas. - The interactive chart responds to 1W, 2W, 1M, 3M, 1Y, or All filters and animates every new HealthKit reading. - Entry tiles list the test type, source, and timestamp so you can compare prediction and max-exercise tests. INSIGHTS & GUIDANCE - The info sheet matches your value with the correct age and sex bracket to explain whether it is poor, good, or superior. - Manual refresh, HealthKit warnings, and empty states keep permissions and sync issues obvious. - Trial countdown and subscription access stay a tap away. APPLE WATCH + WIDGETS - All complication families are supported, so your latest VO₂ max is available on every watch face. - iPhone Home Screen and Lock Screen widgets follow the dashboard range you selected. - The Widget Showcase walks you through pinning widgets or complications and previewing layouts. HOW VO₂ MAX IS CAPTURED 1. Wear Apple Watch for at least 24 hours, then record several Outdoor Walk, Outdoor Run, or Hiking workouts with heart rate and GPS. 2. Apple may need several qualifying workouts and passive measurements before the first VO₂ max estimate appears. 3. Give this app read access to Cardio Fitness (VO₂ Max) in Apple Health so the dashboard, widgets, and complications can display the data. Requires Apple Watch Series 3 or later. VO₂ Max makes it easy to see if your cardio fitness plan is working today, over the last weeks, and all time. Terms and conditions: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

UltraVO2Max

Features
Read full description

UltraVO2Max reads your VO₂ Max directly from Apple Health and displays your aerobic fitness level and monthly running distance in real time. Key Features: • Live VO₂ Max with fitness grade • Monthly running distance • Apple Watch swimming posture tracking & data logging • Outdoor activity recommendations based on weather & air quality • Apple Watch complications (circular, rectangular, corner) • Daily motivational quote • Traditional Chinese & English supported All data is processed on-device only. Nothing is ever sent to external servers.

Screenshots

VO2 Max4 screens
UltraVO2Max4 screens

Verdict

The call

The clearest difference is price: VO2 Max at Free against UltraVO2Max's $2.99. VO2 Max also leads on iOS requirement (18.0 vs 26.5). UltraVO2Max's advantage is in-app purchases (none vs 3). On update cadence, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

VO2 Max is free to download; UltraVO2Max costs $2.99 up front. VO2 Max sells 3 in-app purchases, starting at $2.99 per month. UltraVO2Max asks for nothing beyond the download.

UpkeepUpdate frequency

VO2 Max ships an update every 2 weeks, UltraVO2Max weekly. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 7 level
VO2 Max versus UltraVO2Max: the parameters behind the verdict, then further details
ParameterVO2 MaxUltraVO2Max
PriceFree — better$2.99
Rating3.8 (131 ratings) — better—
Positive reviews26.8% of reviews—
Number of ratings131 — better—
Update frequencyEvery 2 weeksWeekly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, Apple Watch
Requires iOS18.0 — better26.5
Further details — not scored
Size11 MB12 MB
Age rating4+4+
DeveloperBernhard HeringPai Chin Chuan

In-app purchases

3 purchases

VO2 Max

Subscriptions2
  • Monthly Subscription$2.991 Month
  • Yearly Subscription$22.991 Year
One-time1
  • Lifetime Access$79.99
None

UltraVO2Max

No in-app purchases

Questions

Is VO2 Max free?
VO2 Max is free to download, with in-app purchases available.
Is UltraVO2Max free?
UltraVO2Max costs $2.99, with no in-app purchases.
Do VO2 Max or UltraVO2Max have ads?
Neither VO2 Max nor UltraVO2Max shows ads.
Which is updated more often, VO2 Max or UltraVO2Max?
VO2 Max ships an update every 2 weeks, and UltraVO2Max weekly. Most recently, VO2 Max was updated on November 4, 2026 and UltraVO2Max on October 31, 2026.

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