Balanzia vs VO2 Max Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Balanzia
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Push hard or recover today? Balanzia knows every morning. And if you're not sure, just ask. Balanzia turns the data from your Apple Watch, or another watch connected to Apple Health, into clear answers: how your body is today, what to do, and why. Nothing to log. No generic charts: always compared with yourself. YOUR DAY AT A GLANCE • A verdict every morning: push, steady or recover, with the reason in your own numbers ("Your HRV is 12% above your usual"). • Tap your number to see what explains it: your HRV, heart rate and sleep against your usual, what happened yesterday and your last week. • Concrete actions for today that adapt once you've trained. • Energy: what you went to bed with, how much sleep recharged you, and what you've spent so far. • A notification every morning with your energy and how to approach the day, as soon as your night is in. On your Apple Watch too. • In the evening, when to go to bed to wake up at your usual time with your sleep goal covered. • Every Sunday, "Your week": how you slept compared with the week before, and your best night. YOUR RUNNING PLAN • From zero to running regularly, with or without a goal: start running, keep fit, improve, or get ready for a 5K, 10K, half, marathon or any distance on your date. • Choose how many days (we suggest how many and why) and which ones suit you; the plan spreads the runs so you rest. See this week and the next two. • Each day it adapts to your verdict: easier when you need to recover. • Send the session to your Apple Watch, with pace alerts; your runs are ticked off by themselves. • Your progress, estimated time, kilometre splits and the history of your programs. • Ask the coach how it's going and what time you could run. • Share your runs with a card made for your stories. YOUR COACH • Ask whether you can train hard, why your energy is like this or how to recover better. • Type in your own words and it answers from today's data. • "Take it to your AI": a summary of your last 14 days to ask your usual assistant. YOUR DISCOVERIES • Balanzia looks for patterns in your last 60 days, with nothing to log: how late workouts affect you, when you should go to bed, or how much to walk to sleep better. • Only what your data shows clearly, with something concrete to try. YOUR STRESS MOMENTS • Your day, hour by hour: how your energy goes down and when your stress goes up. Tap any hour to see your heart rate and what happened. • Spots when your heart rate spikes while you're not moving and, if you like, tells you right then with something that helps. • The hours it happens most and what makes it worse, like short sleep. • A one-minute guided breathing break to slow down. YOUR BIOLOGICAL AGE • Find out whether your body is younger or older than your age. • What takes years off and what adds them: cardio fitness, sleep, activity… • How it changes month by month, and the one change that would help most. MADE FOR YOU • Choose your goal (sleep better, lower stress, perform better, build muscle…) and the app adapts to it. • Today's workouts with their intensity and your personal heart rate zones. • Slept without your watch? Add your hours or we estimate them from your iPhone. ON YOUR WRIST, YOUR SCREEN AND WITH SIRI • Ask Siri: "Hey Siri, how am I today in Balanzia". Your energy and sleep too, without opening the app. • When you wake up, your readiness shows up by itself in the Apple Watch Smart Stack. And at night, when to go to bed. • Apple Watch app with readiness, energy, sleep and biological age complications. • Home and lock screen widgets. PRIVATE BY DESIGN Everything is calculated on your iPhone from Apple Health. Your health data stays on your device. Balanzia is a wellness app. It does not provide medical advice and is not intended to diagnose or treat any condition. If you have any questions about your health, consult a professional.
VO2 Max Tracker
This app transforms your Apple Watch's cardio fitness data into easy-to-understand trends, milestones, and motivation. It analyzes your VO2 Max readings from outdoor walks and runs, showing you the impact of each workout and your progress over time. All your health data stays private on your device.
- Live VO2 Max trend and fitness level
- Automatic personal best detection
- Workout impact analysis
- Weight and sleep trend integration
- Smart improvement notifications
- Long-term trend charts
- Apple Health data integration
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Your VO2 Max, tracked the way Apple designed it to be. VO2 Max Tracker turns the fitness data your Apple Watch already collects into clear trends, meaningful milestones, and real motivation — no guesswork, no spreadsheets. WHY VO2 MAX MATTERS VO2 Max is the single best predictor of cardiovascular fitness. Apple Watch estimates it automatically from your outdoor walks and runs — this app shows you what it means and where you're headed. FEATURES • Live VO2 Max trend, fitness level, and percentile for your age and sex • Automatic record detection, with a celebration the moment you hit a personal best • Every workout linked to its exact VO2 Max impact — see which runs actually move the needle • Weight and sleep trends alongside your cardio fitness, all in one place • Smart notifications when you improve, trend down, or hit a streak — capped at once a day, never spammy • Full history and long-term trend charts, not just today's number BUILT FOR APPLE HEALTH Works with the VO2 Max, workout, heart rate, sleep, and weight data already in Apple Health. Nothing to set up beyond granting access once. PRIVATE BY DESIGN Your health data never leaves your device. No account, no cloud sync, no analytics, no ads. VO2 Max Tracker reads from Apple Health locally and stays there — that's the whole architecture. REQUIRES APPLE WATCH VO2 Max readings are generated by Apple Watch during outdoor walks or runs. An iPhone alone cannot produce this data — that's an Apple Health limitation, not ours. VO2 Max Tracker is not a medical device and does not provide medical advice. Consult a professional for health decisions. Terms of Use (EULA): https://www.apple.com/legal/internal/terms-en.html
Screenshots
Verdict
The clearest difference is iOS requirement: VO2 Max Tracker at 15.1 against Balanzia's 26.0. On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Balanzia ships an update every 4 days, VO2 Max Tracker every 5 days. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.
| Parameter | Balanzia | VO2 Max Tracker |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 4 days — better | Every 5 days |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Requires iOS | 26.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 13 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | Gonzalo Barba Lopez | Montesweb SL |
In-app purchases
Balanzia
No in-app purchases
VO2 Max Tracker
No in-app purchases









