# VT Check App — VTCheck

> VTCheck (iPhone/iPad app by Robert Chung.)

- Source: https://appshunter.io/ios/app/vt-check-app/id6757127653 (this page in markdown: same URL + `.md`)
- Developer: [Robert Chung](https://appshunter.io/developer/1864742156)
- Category: Health & Fitness, Sports
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 29 MB
- Languages: American English
- Released: 2026-03-24
- Data updated: 2026-08-22
- User reviews in markdown: https://appshunter.io/ios/app/vt-check-app/id6757127653/reviews.md

## What is VT Check App?

VT Check helps endurance athletes identify their exercise intensity during workouts using real-time respiratory and heart rate analytics based on physiological studies and statistical modeling.

HOW IT WORKS
  1. Connect a respiratory sensor or heart rate monitor to your device
  2. Perform workouts with real-time intensity feedback  
  3. Review detailed analysis on the web dashboard at vtcheck.com

  KEY FEATURES
  - Real-time zone detection with color-coded gauge (green/yellow/red)
  - Customizable workout templates (create on web, sync to phone and watch)
  - Automatic calibration that improves from your workout history
  - Drift analysis to verify metabolic stability       
  - Multi-device sync between phone, watch, and web dashboard


## Version history (last 5 releases)

### 1.66.37 — 2026-08-21

Bug fixes

### 1.66.36 — 2026-08-12

Bug fix

### 1.66.35 — 2026-08-08

Bug fixes

### 1.66.34 — 2026-07-01

You can now upload completed Garmin workouts through a Garmin Connect connection without first uploading to your phone. You will need to log into your Garmin Connect account in the VTCheck webapp dashboard in order to sync.

### 1.66.33 — 2026-06-28

Bug fix

## Related topics

[aerobic threshold calculator](https://appshunter.io/ios/topics/aerobic-threshold-calculator)

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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 2026-08-22.*