# GoodSleep - color temperature — Sleep solution

> Analyzes light color temperature to optimize sleep environment. (iPhone/iPad app by CHI HAO CHIU.)

- Source: https://appshunter.io/ios/app/goodsleep-color-temperature/id1292331607 (this page in markdown: same URL + `.md`)
- Developer: [CHI HAO CHIU](https://appshunter.io/developer/1059226484)
- Category: Lifestyle, Health & Fitness
- Price: Free
- Rating: 3.00/5 from 3 App Store ratings · 6 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.0 · 30 MB
- Languages: German (Germany), Italian, Japanese, French (France), Chinese (Simplified, China), Chinese (Traditional, Taiwan), American English, European Spanish
- Released: 2017-10-05
- Data updated: 2026-08-24
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/goodsleep-color-temperature/id1292331607/reviews.md

## What is GoodSleep?

Studies show that lightsources with color temperature less than 3000k do not inhibit our sleep. However, exposure to 6500k and above light sources before bedtime will inhibit the secretion of melatonin. This can cause reduced sleep, and an interruption of REM sleep.

Bedtime use of low color temperature light sources at a low brightness can lead to increased sleep, deeper sleep and a more refreshed feeling upon waking.

Detect the ambient light source, and analyze the color temperature, can be photographed records, as the basis for adjusting the light source.

米爾視覺創意
Millva.com

## Key features

- Ambient light detection
- Color temperature analysis
- Photographic records of light
- Light source adjustment recommendations
- Sleep quality improvement

## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/goodsleep-color-temperature/id1292331607/reviews.md

### 2/5 — 测试个寂寞

*2021-03-05*

啥色温都让相机的白平衡给校回来了

### 1/5 — 这软件不会有什么问题吧

*2021-01-04*

2700k的灯，测出来快6000k了

### 4/5 — 很好用的 app

*2020-06-05*

用来决定不同场合使用的led灯光。

### 5/5 — 测量非常准，不知道另外一个说不准的评论怎么测的

*2020-03-09*

使用手头的Spyder 5 Elite校色仪进行对比，误差不超过200K，对于用手机摄像头进行测量来说是比较准确的，有很大的参考意义

### 5/5 — Good app fro camera users

*2019-02-13*

Very good app for DSLR users operating in low light or bright light. For good white balance

### 1/5 — 很不准

*2017-12-01*

软件创意还行，就是完全测不准灯光的色温，差异悬殊，毫无参考性

## Frequently asked questions about GoodSleep

### Does GoodSleep have ads?

Yes, GoodSleep contains advertisements. This is common for free lifestyle applications that offer utility without a direct purchase.

### What is the price of GoodSleep?

GoodSleep is available for free. There are no in-app purchases or subscription fees required to use its core features.

### What devices does GoodSleep support?

GoodSleep is compatible with iPhone and iPod devices. It is designed for iOS mobile platforms.

### How often is GoodSleep updated?

The latest version of GoodSleep is 2.1, released on April 16, 2021. Updates are not frequent, with the last update being over two years ago.

### What is the age rating for GoodSleep?

GoodSleep has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content.

### What do users think of GoodSleep?

User sentiment for GoodSleep appears mixed, with an average rating of 3.0 stars from 3 ratings. Specific user feedback is limited due to the small number of reviews.

### How does GoodSleep analyze light?

GoodSleep detects ambient light sources and analyzes their color temperature. This data is used to provide recommendations for adjusting light to promote better sleep.

## Version history (last 3 releases)

### 2.1 — 2021-04-16

It is more reasonable to store the color temperature report image.
Solve the problem of stored picture distortion.
Optimize the speed of opening the page.
Minor bug fixes.

### 2.0 — 2020-06-09

Added language version.
Minor bug fixes.
Improve efficiency.

### 1.0 — 2017-10-05

No release notes.

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## More apps by CHI HAO CHIU

- [Daily Text (Chinese) widget](https://appshunter.io/ios/app/daily-text-chinese-widget/id1059226485)
- [NegotiationsDetector](https://appshunter.io/ios/app/negotiationsdetector/id1066737192)
- [Self Reminder -Voice assistant](https://appshunter.io/ios/app/self-reminder-voice-assistant/id1069052838)
- [TIMER - Work Timer Tracker](https://appshunter.io/ios/app/timer-work-timer-tracker/id1128211054)
- [Frames - Classical Frames](https://appshunter.io/ios/app/frames-classical-frames/id1205299762)
- [Lightsaber flashlight](https://appshunter.io/ios/app/lightsaber-flashlight/id1207352109)

All apps by CHI HAO CHIU: https://appshunter.io/developer/1059226484

## Related topics

[blue sky dorma](https://appshunter.io/ios/topics/blue-sky-dorma) · [color temperature](https://appshunter.io/ios/topics/color-temperature)

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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 2026-08-24.*