VO2 Master Manager vs BIOS Kotton MD
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VO2 Master Manager
This tool collects and displays performance data including VO2, heart rate, and power. It also monitors speed, cadence, and muscle oxygenation for comprehensive analysis.
- VO2 monitoring
- Heart rate tracking
- Power data collection
- Speed and cadence monitoring
- Muscle oxygenation data
- Performance analysis
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VO2 Master Manager is a data display, collection, and analysis tool. It monitors your performance through VO2, heart rate, and power, speed, cadence, and Moxy muscle oxygenation data collection.
BIOS Kotton MD
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This app transforms VO2 Max and Resting Metabolic Rate (RMR) test results into daily guidance for nutrition and recovery optimization. Users can track how their body burns fat vs carbs, monitor biological age, and receive tailored insights for training and lifestyle. It provides access to personalized meal plans, recipes, and workout builders — all powered by personal metabolic analysis and breath-based testing. Key Features: • Dashboard with activity, nutrition, recovery, and metabolic data. • Personalized nutrition planning with meal plans and smart recommendations. • Training builder aligned with VO2 Max and RMR test results. • Recovery tracking with biological age and fat vs carb burn metrics.
Screenshots
Verdict
VO2 Master Manager and BIOS Kotton MD are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
Both ship on a similar rhythm, roughly monthly. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.
| Parameter | VO2 Master Manager | BIOS Kotton MD |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (9 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Monthly | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPod, Apple Watch — better |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 88 MB | 63 MB |
| Age rating | 4+ | 17+ |
| Developer | VO2 MASTER HEALTH SENSORS INC | EndoMedical Inc |
In-app purchases
VO2 Master Manager
No in-app purchases
BIOS Kotton MD
No in-app purchases
