---
title: "Twilight: Blue light filter — App Overview"
url: https://marlvel.ai/intel-report/health-fitness/twilight-blue-light-filter
category: Health & Fitness
developer: Petr Nálevka (Urbandroid)
platforms: ios, android
rating: 4.6 (445.7K ratings)
pricing: free
report_level: overview
generated: 2026-04-16
---

<!-- SECTION: Key Insight -->
> **Key Insight:** The app is marketed as a tool to reduce blue light exposure in the evening to potentially improve sleep quality.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Health & Fitness |
| Rating | 4.6 ★ (445.7K) |
| Pricing | free |
| Platforms | iOS, Android |
| Latest Version (iOS) | 1.9.0 |
| Latest Version (Android) | VARY |
| Developer | Petr Nálevka (Urbandroid) |

<!-- SECTION: Summary -->
## What is Twilight: Blue light filter?

Twilight is a health-focused utility designed to mitigate the impact of blue light exposure from mobile devices. The app claims to adjust screen color temperature based on the time of day to help users maintain natural circadian rhythms and support melatonin production.

<!-- SECTION: Key Features -->
## Key Features

- **Blue Light Filtering**: Filters the flux of blue light emitted by the device screen to reduce exposure to the 460-480nm light range.
- **Adaptive Screen Adjustment**: Automatically modifies the device display settings to adapt to the specific time of day.

<!-- SECTION: Target Audience -->
## Who is it for?

Mobile device users who experience difficulty falling asleep or light sensitivity due to evening screen usage.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/blue-light-filter/id6463748819?uo=4)
- [Google Play](https://play.google.com/store/apps/details?id=com.urbandroid.lux&hl=en&gl=us)
- [Full Intelligence Report](https://marlvel.ai/intel-report/health-fitness/twilight-blue-light-filter)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/intel-report/health-fitness/twilight-blue-light-filter).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*