# Cardiolytics: VO2 Max Health — VO2 Max & Fitness Age Tracker > VO2 max and fitness age tracker with Apple Health integration. (iPhone/iPad app by Based Solutions LLC.) - Source: https://appshunter.io/ios/app/cardiolytics-vo2-max-health/id6749484835 (this page in markdown: same URL + `.md`) - Developer: [Based Solutions LLC](https://appshunter.io/developer/1794449435) - Category: Health & Fitness, Lifestyle - Price: Free with in-app purchases - Rating: 4.06/5 from 17 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 18.0 · 2 MB - Languages: English - Released: 2025-08-22 - Data updated: 2026-08-03 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/cardiolytics-vo2-max-health/id6749484835/reviews.md ## What is Cardiolytics? Cardiolytics transforms your VO2 max data into actionable health insights with real-time tracking, detailed progress analysis, and instant notifications. Key Features: - Instant VO2 Max Notifications: Get notified immediately when new VO2 max data syncs to Apple Health - Daily Summary Dashboard: View your VO2 max, workouts, and key health metrics at a glance - Progress Tracking: Visualize your VO2 max improvements over time with detailed charts and training summaries - Workout History: Browse all workouts tied to your VO2 max readings and track your cardio sessions - Fitness Age Calculator: Discover your biological age based on cardiovascular fitness - Beautiful Widgets: Multiple widget options to track your VO2 max progress right from your home screen - Apple Health Integration: Seamlessly connects with your existing health data - Dark Mode Support: Sleek dark interface for comfortable viewing anytime - Cardiovascular Health Insights: Understand what your VO2 max means for your overall health Perfect for: Marathon runners and endurance athletes Anyone focused on heart health and longevity Fitness enthusiasts tracking cardiovascular improvements Health-conscious individuals monitoring biological aging Why Choose Cardiolytics? Unlike other fitness apps, Cardiolytics specializes exclusively in VO2 max tracking and cardiovascular health. Our advanced algorithms provide personalized insights into your fitness age, helping you understand not just your current fitness level, but how it impacts your long-term health. With comprehensive progress tracking and detailed workout history, you can see exactly how each training session contributes to your VO2 max improvements. Privacy Policy: https://www.basedsolutionsllc.com/cardiolytics-privacy-policy.html Terms of Use: https://www.basedsolutionsllc.com/cardiolytics-terms-of-service.html ## Key features - Instant VO2 Max Notifications - Daily Summary Dashboard - Progress Tracking - Fitness Age Calculator - Apple Health Integration - Cardiovascular Health Insights ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Cardiolytics Premium Feature Access | $4.99 | per month | | Cardiolytics Premium Feature Access | $39.99 | per year | ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/cardiolytics-vo2-max-health/id6749484835/reviews.md ### 2/5 — App flawed by AppleWatch limitations *2025-11-16* Although the date screen is a nice quick snapshot it is wildly in accurate. It relies on Apple Health data. For VO2 max the Apple Watch algorithms only measure walking or running. My walking is only at about 50-60% of my max heart rate. My real training is on a bike where I try to do VO2 max training. This app does not pick up any cycling training, indoor training or many other vo2 max training exercises. **Developer response:** Hi Djphhi, Thank you for taking the time to share your feedback. I understand your frustration, and I appreciate you explaining your training situation. You're absolutely right that Apple Watch's VO₂ max measurement has limitations - it primarily captures data from outdoor walking and running workouts. Cardiolytics displays the cardiovascular fitness data that Apple Health provides, which means we're limited to showing what the Apple Watch itself can measure. The Apple Watch VO₂ max algorithm was specifically designed and validated for outdoor walking and running. Cycling, indoor training, and other exercise types use different biomechanics and require entirely different calculation methods that aren't compatible with wrist-worn heart rate data alone. This is a fundamental limitation of the measurement approach, not something any app can work around - even getting lab-accurate VO₂ max from cycling would require wearing a mask and measuring actual oxygen consumption. Our goal with Cardiolytics is to help you track the VO₂ max data you do have, send you notifications when it changes, and visualize your progress over time. We understand this doesn't give you the complete picture if your primary training doesn't generate these measurements. We'd love to provide more comprehensive tracking, but we're dependent on what Apple Health makes available to us. If you have suggestions for how we could make the app more useful within these constraints, we'd love to hear them at feedback@liftalytics.app. Thanks again for your honest feedback, and keep up the great work with your training! ## Frequently asked questions about Cardiolytics ### What is Cardiolytics? Cardiolytics is a health and fitness app that specializes in tracking your VO2 max and calculating your fitness age. It provides insights into your cardiovascular health and progress over time. ### How does Cardiolytics track VO2 max? Cardiolytics integrates seamlessly with Apple Health to sync your existing VO2 max data. It then provides instant notifications and detailed analysis of this data. ### What is Fitness Age in Cardiolytics? Fitness Age is a metric calculated by Cardiolytics based on your cardiovascular fitness, specifically your VO2 max. It helps you understand your biological age in relation to your heart health. ### Does Cardiolytics have ads? No, Cardiolytics does not contain advertisements. The app is free to download and use, with optional premium features available through subscription. ### What are the subscription options for Cardiolytics? Cardiolytics offers premium feature access via subscription. You can choose a monthly plan for $4.99 with a 7-day free trial, or an annual plan for $39.99. ### What devices does Cardiolytics support? Cardiolytics is currently supported on iPhone devices. It leverages Apple Health integration for data syncing. ### How often is Cardiolytics updated? The latest version of Cardiolytics is 2.0.3, and it was last updated on February 13, 2026. Updates typically include new features, bug fixes, and performance improvements. ### What do users like about Cardiolytics? Users appreciate the app's focus on VO2 max tracking, the fitness age calculator, and the seamless integration with Apple Health. The detailed progress charts and instant notifications are also highlighted as valuable features. ## Version history (last 5 releases) ### 2.0.5 — 2026-06-24 We've updated how Cardiolytics fetches your VO2 Max data from Apple Health, resulting in more reliable readings across all device types. ### 2.0.3 — 2026-02-13 Major Update: Complete App Redesign We've rebuilt Cardiolytics from the ground up with powerful new features: NEW FEATURES: - Daily Summary Dashboard - View your VO2 max, workouts, and key metrics at a glance - Progress Tracking - Visualize improvements with detailed charts and training summaries - Workout History - Browse all workouts tied to your VO2 max readings IMPROVEMENTS: - Improved data visualization and charts - Better performance and reliability - Refined user interface throughout the app Track your cardiovascular fitness journey like never before with Cardiolytics 2.0! ### 2.0.0 — 2026-02-09 Major Update: Complete App Redesign We've rebuilt Cardiolytics from the ground up with powerful new features: NEW FEATURES: - Enhanced VO2 Max Detail View - Explore your cardio fitness history with interactive charts and in-depth performance analysis - Daily Summary Dashboard - View your VO2 max, workouts, and key metrics at a glance - Progress Tracking - Visualize improvements with detailed charts and training summaries - Workout History - Browse all workouts tied to your VO2 max readings IMPROVEMENTS: - Improved data visualization and charts - Refined user interface throughout the app Track your cardiovascular fitness journey like never before with Cardiolytics 2.0! ### 1.0.3 — 2025-12-10 This new version of Cardiolytics: VO2 Max Health Includes: Personalized Fitness Ratings Your VO2 Max progress bar now uses age and sex-specific standards based on American Heart Association research. Ratings and progress are compared to your demographic group for more accurate fitness assessments. Improved Progress Visualization The progress bar now clearly shows your position within your current fitness level, making it easier to track improvement and understand your next milestone. VO2 Max Guide New comprehensive guide in Settings explaining how Apple Health calculates VO2 Max, requirements for measurements, and trouble shooting tips for missing data. iOS 26 Support Full compatibility with iOS 26 plus performance improvements throughout the app. ### 1.0 — 2025-08-22 No release notes. ## Apps similar to Cardiolytics | App | Rating | Price | Category | | --- | --- | --- | --- | | [Treadly: Zone 2 & VO2 Max](https://appshunter.io/ios/app/treadly-zone-2-and-vo2-max/id6581489523) | 4.1 (10) | Free | Health & Fitness | | [VO2 Max Trainer: HIIT, Zone 2](https://appshunter.io/ios/app/vo2-max-trainer-hiit-zone-2/id6736629740) | 3.0 (2) | Free | Health & Fitness | | [Tabata & HIIT Timer - PEAKVO2](https://appshunter.io/ios/app/tabata-and-hiit-timer-peakvo2/id6532617265) | — | Free | Health & Fitness | | [True VO2 Max — Cardio Fitness](https://appshunter.io/ios/app/true-vo2-max-cardio-fitness/id6751441781) | 3.7 (12) | Free | Health & Fitness | | [VO2 Max: Widget Notifications](https://appshunter.io/ios/app/vo2-max-widget-notifications/id1394840943) | 3.8 (125) | Free | Health & Fitness | | [VO2Max Training](https://appshunter.io/ios/app/vo2max-training/id6751254440) | 4.5 (8) | Free | Health & Fitness | ## More apps by Based Solutions LLC - [Liftalytics: Gym Log](https://appshunter.io/ios/app/liftalytics-gym-log/id6741500273) - [Tabata Timer - SwiftTabata](https://appshunter.io/ios/app/tabata-timer-swifttabata/id6745058560) - [WOD Timer - SwiftWOD](https://appshunter.io/ios/app/wod-timer-swiftwod/id6746074573) - [Rock Identifier - AI Scanner.](https://appshunter.io/ios/app/rock-identifier-ai-scanner/id6747295121) - [Bible Note Journal](https://appshunter.io/ios/app/bible-note-journal/id6752273302) All apps by Based Solutions LLC: https://appshunter.io/developer/1794449435 ## Related topics [vo2 max pro](https://appshunter.io/ios/topics/vo2-max-pro) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-03.*