# ZoneMax: VO₂ Max Optimizer — HR Zones, VO₂ Max & Recovery

> Apple Watch fitness insights: HR zones, VO₂ max, recovery, privacy-focused. (iPhone/iPad app by Pleiades Labs LLC.)

- Source: https://appshunter.io/ios/app/zonemax-vo-max-optimizer/id6803922486 (this page in markdown: same URL + `.md`)
- Developer: [Pleiades Labs LLC](https://appshunter.io/developer/6800002511)
- Category: Health & Fitness
- Price: $9.99
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 12+
- Requires: iOS 17.0 · 8 MB
- Languages: American English, French (France), German (Germany), Italian, Japanese, Brazilian Portuguese, Chinese (Simplified, China), European Spanish
- Released: 2026-08-26
- Data updated: 2026-09-11
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/zonemax-vo-max-optimizer/id6803922486/reviews.md

## What is ZoneMax?

ZoneMax turns your Apple Watch workout data into clear, actionable fitness insights — no subscription, no account, no data leaving your device.

HEART RATE ZONE BREAKDOWN
See exactly how much time you spend in each heart rate zone for every workout. Visualize your training intensity with an Activity Ring-style display.

VO₂ MAX TRENDS
Track your cardiorespiratory fitness over time with interactive charts. See how you rank against age and sex-adjusted benchmarks.

DAILY RECOVERY SCORE
A composite score built from your HRV, resting heart rate, sleep, and training load — so you know when to push hard and when to rest.

BUILT FOR PRIVACY
Zero data collection. Zero analytics. Everything stays on your device.

Requires Apple Watch and HealthKit data.

## Key features

- Heart rate zone breakdown
- VO₂ max trends tracking
- Daily recovery score
- Privacy-focused data handling
- Interactive training intensity charts


## Frequently asked questions about ZoneMax

### What is ZoneMax?

ZoneMax is a paid application designed to analyze your Apple Watch workout data, providing insights into heart rate zones, VO₂ max trends, and daily recovery scores. It emphasizes privacy by keeping all data on your device.

### What devices does ZoneMax support?

ZoneMax is supported on both iPhone and Apple Watch devices, leveraging data from your Apple Watch workouts.

### How accurate is ZoneMax's data?

ZoneMax utilizes data directly from your Apple Watch and HealthKit, aiming to provide accurate insights based on the information captured by your wearable device.

### Does ZoneMax have ads?

No, ZoneMax does not contain advertisements. It is a paid application with no ads or in-app purchases.

### What is the age rating for ZoneMax?

ZoneMax has an age rating of 12+, making it suitable for users aged 12 and above.

### How often is ZoneMax updated?

ZoneMax was last updated on August 26, 2026, with version 1.0. Further update frequency is not specified but the initial release indicates ongoing development.

### What are the benefits of using ZoneMax?

ZoneMax offers clear, actionable fitness insights from your Apple Watch data, including detailed heart rate zone breakdowns, VO₂ max trends, and a daily recovery score, all while ensuring your data remains private on your device.

### Is a subscription required for ZoneMax?

No, ZoneMax does not require a subscription. It is a one-time purchase application, and no account is needed to use its features.

## Version history (last 1 release)

### 1.0 — 2026-08-26

No release notes.

## More apps by Pleiades Labs LLC

- [Kidisms](https://appshunter.io/ios/app/kidisms/id6761655604)
- [HomeschoolGo](https://appshunter.io/ios/app/homeschoolgo/id6800017018)

All apps by Pleiades Labs LLC: https://appshunter.io/developer/6800002511

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*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 2026-09-11.*