# Cozie — Watch-based surveys made easy

> Watch-based survey app for human comfort data collection with HealthKit integration. (iPhone/iPad app by Clayton Miller.)

- Source: https://appshunter.io/ios/app/cozie/id1625029501 (this page in markdown: same URL + `.md`)
- Developer: [Clayton Miller](https://appshunter.io/developer/1601197774)
- Category: Utilities, Developer Tools
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.0 · 4 MB
- Languages: English
- Released: 2022-12-11
- Data updated: 2026-06-05
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/cozie/id1625029501/reviews.md

## What is Cozie?

Cozie is an iOS App for for human comfort data collection. It is extremely useful for conducting right-here-right-now surveys on the Apple Watch. The survey responses are tagged with the location. In addition, Cozie also connects also to Apple HealthKit to retrieve additional information. The health data from Apple HealthKit includes, heart rate, blood oxygen level, environmental sound levels, step count, walking distance, weight, body mass index, among others.
This app is meant as a demo for researchers who are interested in this technology. The source-code is open-source and we encourage the community to adapt the app to their research needs.

## Key features

- Real-time surveys on Apple Watch
- Location-tagged responses
- Apple HealthKit integration
- Collects heart rate, blood oxygen, steps
- Open-source code for research adaptation

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/cozie/id1625029501/reviews.md

### 5/5 — Perfect app for collecting feedback from users

*2022-12-12*

Great application for collecting data from participants in longitudinal studies.

## Frequently asked questions about Cozie

### What is Cozie?

Cozie is an iOS application designed for conducting surveys directly on the Apple Watch. It focuses on collecting human comfort data and can integrate with Apple HealthKit for additional health metrics.

### Does Cozie have ads?

No, Cozie is ad-free, allowing for an uninterrupted user experience during surveys and data collection.

### What devices does Cozie support?

Cozie is compatible with both the Apple Watch and iPhone, enabling seamless data collection and management across your Apple ecosystem.

### How often is Cozie updated?

The latest version of Cozie was released on January 9, 2024, indicating active development and support for the application.

### Is Cozie suitable for children?

Cozie has an age rating of 4+, making it appropriate for a wide range of users, including younger individuals under adult supervision.

### Can I use Cozie offline?

While the description doesn't explicitly state offline capabilities, the app's focus on real-time data collection suggests it may require an internet connection for certain functions.

### What kind of health data can Cozie collect?

Cozie can retrieve various health data points from Apple HealthKit, including heart rate, blood oxygen levels, step count, walking distance, weight, and body mass index.

### Is Cozie free to use?

Yes, Cozie is available for free, making it an accessible tool for researchers and individuals interested in collecting comfort and health data.

## Version history (last 5 releases)

### 3.0.1 — 2024-01-09

- Fixed push notification
- Updated default URLs for external watch survey, phone survey
- Fix app name on Apple Watch
- Remove old icons

### 3.0.0 — 2023-09-12

- New HealthKit data points:
  - Heart rate variability (HRV)
  - Wrist temperature
  - Sleep analysis
- Offline data logging (in-app file download)
- Customizable backend configuration in the app
- Customizable watch surveys using JSON files
- Customizable phone survey using browser-based surveys (e.g., Qualtrics, Google Forms, etc.)
- Onboarding using a QR code

### 2.0.3 — 2023-02-15

- Fixed missing location icon for 'Noise and Privacy' watch survey

### 2.0.2 — 2023-02-01

- Removed download button from the Settings tab
- Fixed 'Thermal (long)' watch survey

### 2.0.1 — 2023-01-04

- added new watch surveys
- randomized default participant id
- replaced link to BUDS Lab with link to GitHub repository of Cozie for Apple
- removed copyright note
- removed download button

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## Related topics

[cozie](https://appshunter.io/ios/topics/cozie)

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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 2026-06-05.*