# Stress Duck vs Stress Tracker HRV

The clearest difference is review sentiment: Stress Tracker HRV at 100% against Stress Duck's 0%. Stress Tracker HRV also leads on chart position (#178 vs unranked) and iOS requirement (13.0 vs 17.0). Stress Duck's advantage is price (Free vs $7.99) and update cadence (every 2 days vs every 5 weeks). On ads, in-app purchases and device support there is nothing between them.

Stress Duck is free to download; Stress Tracker HRV costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Stress Duck ships an update every 2 days, Stress Tracker HRV every 5 weeks. The most recent releases landed on June 10, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Stress Duck | Stress Tracker HRV |
| --- | --- | --- |
| Price | **Free** | $7.99 |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/stress-tracker-hrv/id6748257580/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 5 weeks |
| Monetization | **Free** | Paid |
| Best chart rank | — | **#178** |
| Size | 27 MB | 5 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPod, Apple Watch |
| Age rating | 12+ | 4+ |
| Developer | [子龙 郭](https://appshunter.io/developer/1499776496) | [Alvaro Garcia Pizarro](https://appshunter.io/developer/1822790774) |

## What reviewers say

### Stress Duck

[App page](https://appshunter.io/ios/app/stress-duck/id6472258375)

This app helps you manage daily stress and track your mood. It integrates with Apple Health to display health data like step count and sleep, offering a simple way to monitor your well-being and encourage happiness.

**Highlights:** Daily mood and stress status check, Apple Health data integration, View step count, sleep, and calorie info, Privacy-focused data handling, Encourages happiness and stress reduction

**Features:** macOS Compatibility

**In-app purchases:** none


### Stress Tracker HRV

[App page](https://appshunter.io/ios/app/stress-tracker-hrv/id6748257580)

**Currently charting:** #178 Top Paid · Health & Fitness (US App Store)

Monitor your body's stress levels, sleep quality, and recovery using Heart Rate Variability (HRV) data from your Apple Watch. Gain insights into your mental and physical well-being to make informed decisions about rest and activity.

**Highlights:** Real-time stress tracking via HRV, Daily and weekly stress trend analysis, Recovery Index for bounce-back assessment, Sleep score and optimization insights, On-device data privacy

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Stress Duck free?

Stress Duck is free to download, with no in-app purchases.

### Is Stress Tracker HRV free?

Stress Tracker HRV costs $7.99, with no in-app purchases.

### Do Stress Duck or Stress Tracker HRV have ads?

Neither Stress Duck nor Stress Tracker HRV shows ads.

### Which is updated more often, Stress Duck or Stress Tracker HRV?

Stress Duck ships an update every 2 days, and Stress Tracker HRV every 5 weeks. Most recently, Stress Duck was updated on June 10, 2026 and Stress Tracker HRV on September 19, 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.*