75 Days Challenge vs VO2Stats

Introducing the 75 Days Challenge App – Redefine Your Limits, Elevate Your Fitness! Are you prepared to undertake the ultimate 75-day fitness and mental challenge? The 75 Days Challenge App is here to guide you through an extraordinary journey of strength, discipline, and transformation. Key Features: * Crush Your Limits: The 75 Days Challenge isn't just a fitness endeavor; it's a mindset revolution. This app is your partner in pushing beyond your comfort zone, embracing the "hard," and achieving what you once thought impossible in just 75 days. * Total Fitness Focus: Dive into a world of comprehensive fitness routines that challenge every aspect of your physicality over 75 days. From intense workouts to strategic recovery, the app maps out every step of your 75-day fitness odyssey. * Unyielding Discipline: Forge unbreakable discipline through the daily commitment of the challenge for 75 days. With the app by your side, stay on track with every workout, every ounce of sweat, and every drop of effort. * Challenge Tracker: Seamlessly track your progress over 75 days as you conquer each day of the 75 Days Challenge. Monitor your fitness triumphs and celebrate every hard-earned victory along your 75-day journey. * Mental Resilience: Beyond the physical, this 75-day challenge hones your mental resilience. Leverage the app's guidance to develop mental toughness that will empower you not only in fitness but in every aspect of life. * Daily Reminders: Let the app be your "hard" reminder over the course of 75 days. * Personal Growth: Embrace the challenge's transformative power over the course of 75 days, not just physically but mentally. The app aids you in embracing discomfort, adapting to change, and growing stronger with each passing day of your 75-day challenge. * Track Your Hard: Witness your evolution over the 75 days with a dedicated progress tracker. Witness firsthand how your dedication turns "hard" into your stepping stone to success throughout your 75-day journey. * 75 Soft Challenge: Expand your horizons further with the 75 Soft Challenge, where you'll focus on mindset, grit, and self-development to complement your fitness journey. * Self-Confidence: Build unshakable self-confidence as you conquer each day of the challenge. * Accountability Partner: Use the app as your accountability partner to stay disciplined and challenge your mind. * Create Habits: Develop lasting habits that will transform your health and fitness. * Health Challenge: Join the health challenge and experience group fitness like never before. * Endurance Workout: Enhance your endurance through challenging workouts designed to push your limits. * Arrow Tracker: Monitor your progress with the Arrow Tracker, witnessing your journey from "soft" to resilient. The 75 Days Challenge App isn't just an app; it's your beacon of inspiration, your accountability partner, and your bridge to a new level of fitness and determination over 75 days. Ready to redefine your limits, embrace the "hard," and conquer the challenge across 75 days? LIFETIME SUBSCRIPTION PRICING & TERMS 75 Days Challenge is free to download. Ongoing use requires an active subscription, available on a one-time plan for lifetime usage. You need to pay for the subscription for using this app. All payments made through iTunes are controlled and managed by Apple. Payments will be charged to your iTunes Account at confirmation of purchase. By continuing, you accept our Privacy Policy and Terms of Use. Subscriptions can be managed, and auto-renewal turned off in Account Settings in iTunes after purchase. Once purchased, refunds will not be provided for any unused portion of the term. Read our full Terms of Use & Privacy Policy. Terms of use: https://sites.google.com/view/termsofusegetcomma/home Privacy Policy: https://sites.google.com/view/ppgetcomma/home.

VO2Stats calculates your VO2 max using nine peer-reviewed scientific methods - giving you a richer, more complete picture of your aerobic fitness than any single estimate can provide. -- NINE METHODS -- Jack Daniels VDOT - converts your running pace and distance into a VDOT fitness score, the gold standard used by coaches worldwide. Submaximal HR (Firstbeat-style) - models the relationship between heart rate and running speed, extrapolated to your maximum. Uth-Sorensen - uses the ratio of your maximum to resting heart rate. Simple and effective for trend tracking. Rockport Walk Test - ideal for lower-fitness individuals; based on a 1-mile walk and end heart rate. Cooper 12-Min Run - estimates VO2 max from how far you can run in 12 minutes. Non-Exercise / Wier - requires no workout; uses age, body metrics, and daily activity data. HR Recovery - faster heart rate recovery after exercise correlates strongly with higher VO2 max. Astrand-Rhyming (Cycling) - submaximal cycling test using power output and steady-state heart rate, with age correction. Coggan FTP (Cycling) - derives VO2 max from your best 20-minute cycling power, normalized to body weight. -- FEATURES -- Dashboard - see your best current estimate with confidence rating, plus a summary of all active methods at a glance. History - track how your VO2 max has changed over 3 months, 6 months, 1 year, 2 years, or all time. Fitness categories adjust for your age at each point in time, so improving thresholds are always compared fairly. Compare - plot all nine methods on one chart to see how they align. A spread indicator tells you when methods agree. Methods Guide - a full reference explaining each algorithm, its scientific source, the data it needs, and its limitations. Fitness categories are personalized to your age and sex from Apple Health. Confidence indicators - each estimate shows a signal-strength badge (Rough / Fair / Reliable) based on the quality and quantity of data available. -- PRIVATE BY DESIGN -- All calculations run entirely on your iPhone. VO2Stats reads from Apple Health and never writes to it. No account required. No cloud sync. No advertising. No analytics. Your health data never leaves your device. -- IMPORTANT -- VO2Stats is a fitness and wellness tool for informational purposes only. It is not a medical device and is not intended to diagnose, treat, or replace clinical VO2 max testing. Accuracy varies based on available data, individual physiology, and workout conditions. Consult a healthcare professional before making health decisions based on any fitness metric.