# VO2 Master Manager vs Zebdoc Provider

The clearest difference is update cadence: VO2 Master Manager at monthly against Zebdoc Provider's every 19 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

VO2 Master Manager ships an update monthly, Zebdoc Provider every 19 months. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | VO2 Master Manager | Zebdoc Provider |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (9 ratings)](https://appshunter.io/ios/app/vo2-master-manager/id936519055/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 19 months |
| Monetization | Free | — |
| Size | 88 MB | 54 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [VO2 MASTER HEALTH SENSORS INC](https://appshunter.io/developer/936519054) | [NX3 Corporation](https://appshunter.io/developer/799605559) |

## What reviewers say

### VO2 Master Manager

[App page](https://appshunter.io/ios/app/vo2-master-manager/id936519055)

This tool collects and displays performance data including VO2, heart rate, and power. It also monitors speed, cadence, and muscle oxygenation for comprehensive analysis.

**Highlights:** VO2 monitoring, Heart rate tracking, Power data collection, Speed and cadence monitoring, Muscle oxygenation data, Performance analysis

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Zebdoc Provider

[App page](https://appshunter.io/ios/app/zebdoc-provider/id6738277143)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is VO2 Master Manager free?

VO2 Master Manager is free to download, with no in-app purchases.

### Is Zebdoc Provider free?

Zebdoc Provider is free to download, with no in-app purchases.

### Do VO2 Master Manager or Zebdoc Provider have ads?

Neither VO2 Master Manager nor Zebdoc Provider shows ads.

### Which is updated more often, VO2 Master Manager or Zebdoc Provider?

VO2 Master Manager ships an update monthly, and Zebdoc Provider every 19 months. Most recently, VO2 Master Manager was updated on October 24, 2026 and Zebdoc Provider on October 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*