# Zone 2 by Prime Factors

> Zone 2 by Prime Factors (iPhone/iPad app by M Three Health Pte. Ltd..)

- Source: https://appshunter.io/ios/app/zone-2-by-prime-factors/id6504693936 (this page in markdown: same URL + `.md`)
- Developer: [M Three Health Pte. Ltd.](https://appshunter.io/developer/1753348046)
- Category: Sports, Health & Fitness
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 3 MB
- Languages: English
- Released: 2025-03-17
- Data updated: 2026-05-16
- User reviews in markdown: https://appshunter.io/ios/app/zone-2-by-prime-factors/id6504693936/reviews.md

## What is Zone 2 by Prime Factors?

Train Smarter, Stay in Zone 2!

Take control of your Zone 2 heart rate training with our app, designed for iPhone and Apple Watch. Whether you're an endurance athlete or just starting, staying in the right heart rate zone is key to improving fitness, burning fat efficiently, and building stamina.


## Version history (last 1 release)

### 1.0 — 2025-03-17

No release notes.

## More apps by M Three Health Pte. Ltd.

- [Prime Factors-Your Core Health](https://appshunter.io/ios/app/prime-factors-your-core-health/id6744610194)
- [Prime Factors - CGM Companion](https://appshunter.io/ios/app/prime-factors-cgm-companion/id6755152761)

All apps by M Three Health Pte. Ltd.: https://appshunter.io/developer/1753348046

## Related topics

[zone 2 by prime factors](https://appshunter.io/ios/topics/zone-2-by-prime-factors)

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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 2026-05-16.*