VO2max Calculator
VO2max Calculator is a free, formula-based fitness estimation tool for runners and athletes on iOS.
The App DNA
What makes this app unique?
The app serves users who prefer manual, mathematical projections of race performance over automated, wearable-based fitness tracking.
For Runners and athletes seeking a mathematical framework to estimate fitness levels and predict race performance.
What does it look like?
Key features
Calculates VO2max values using a mathematical model based on user-provided race results.
Outputs suggested training paces based on the calculated VO2max estimate.
Projects future race performance times using the derived VO2max framework.
How much does it cost?
The app is distributed as a free tool without visible monetization, subscriptions, or in-app purchases.
Velocity
Dormant developmentplatform expansionShow more...
The app has been inactive for 4,164 days, showing no signs of development or maintenance. The single available release was a platform compatibility update for watchOS 27, which does not introduce new features. Given the lack of updates for over a decade, the development momentum is classified as a zombie state.
Who built it?
QuizStone ApS
10 apps tracked · Health & Fitness
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What do users think recently?
Recent user voice shows an upset sentiment.
How are ratings & reviews evolving?
What users say, by theme
- The application fails to launch and displays a black screen immediately after users input data
3 of 3 recent reviews analyzed · limited sample
Read the full review analysisUnlock 1 more frustration theme, each backed by review evidence.
Access the full report for freeCompetition
Competitive landscape for VO2max Calculator
How's the Health & Fitness market?
VO2max Calculator holds a 1-star rating on iOS, reflecting its failure to adapt to platform changes over the last decade. The app's lack of updates since 2015 leaves it without a competitive position in the modern fitness market.
Read the market outlookThe rivals identified
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Access the full report for freeThe Analyst's Read
Key takeaways for VO2max Calculator
Where is it heading?
The fitness market has consolidated around automated, wearable-integrated tracking, leaving static calculators like VO2max Calculator without a viable user base. The lack of updates since 2015 guarantees continued decline, as the app is effectively broken on modern hardware.
- The app has remained in maintenance-only mode for over 11 years, which prevents it from functioning on modern iOS devices.
- Consistent 1-star ratings from users confirm that the lack of functional utility is a terminal issue for the product.
The SWOT
- Mathematical framework provides a standardized, objective baseline for race prediction
- Repositioning as a web-based calculator would remove the platform-dependency barrier
Next best moves
Sunset the mobile application because it has not received an update since 2015 and fails to launch → eliminate negative brand impact
The counter-intuitive read
The app's failure is not a feature gap but a platform-dependency trap…
Read the full takeSince the last report: The app remains in a terminal, non-functional state with no development progress. The primary change is the formalization of a web-based repositioning strategy within the SWOT analysis to address the current platform-dependency failure.
Bottom line
VO2max Calculator is a legacy tool that no longer functions, and the lack of development since 2015 confirms its status as a sunset product.
Unlock 1 critical friction, 1 market threat and the analyst’s take.
Access the full report for freeSources
- [1] App Store
Report last updated