# Stress Duck vs InForm Motion Analysis

The clearest difference is update cadence: Stress Duck at every 2 days against InForm Motion Analysis's every 3 days. InForm Motion Analysis's advantage is iOS requirement (15.0 vs 17.0). 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.

Stress Duck ships an update every 2 days, InForm Motion Analysis every 3 days. The most recent releases landed on October 23, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Stress Duck | InForm Motion Analysis |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 days |
| Monetization | Free | — |
| Size | 27 MB | 47 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [子龙 郭](https://appshunter.io/developer/1499776496) | [Sean Ericson](https://appshunter.io/developer/6797707925) |

## 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


### InForm Motion Analysis

[App page](https://appshunter.io/ios/app/inform-motion-analysis/id6797707923)

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

**In-app purchases:** none


## Frequently asked questions

### Is Stress Duck free?

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

### Is InForm Motion Analysis free?

InForm Motion Analysis is free to download, with no in-app purchases.

### Do Stress Duck or InForm Motion Analysis have ads?

Neither Stress Duck nor InForm Motion Analysis shows ads.

### Which is updated more often, Stress Duck or InForm Motion Analysis?

Stress Duck ships an update every 2 days, and InForm Motion Analysis every 3 days. Most recently, Stress Duck was updated on October 23, 2026 and InForm Motion Analysis on October 8, 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.*