# CatLight: Book & Reading Light

> Use your screen as a warm book lamp with swipe brightness and color control

Canonical page: [https://chrome-stats.com/d/com.github.xiaofeidev.catlight](https://chrome-stats.com/d/com.github.xiaofeidev.catlight)

## Overview

- **ID:** `com.github.xiaofeidev.catlight`
- **Platform:** Android
- **Type:** Android app
- **Status:** Available
- **Publisher:** xiaofeidev
- **Category:** TOOLS
- **Downloads:** 284
- **Version:** 1.2.7
- **Last updated:** 2026-06-13
- **First published:** 2024-12-25
- **Publisher country:** CN
- **Size:** 20 MB
- **Data as of:** 2026-10-12
- **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.github.xiaofeidev.catlight)
- **Website:** [https://flash-c1566.web.app/](https://flash-c1566.web.app/)
- **Privacy policy:** [https://sites.google.com/view/xiaofeidev-catlight](https://sites.google.com/view/xiaofeidev-catlight)

## Description

Use your phone as an adjustable reading light for physical books, magazines and notes. CatLight fills your Android screen with a steady glow, so you can read at night without turning on a bright room light.<br><br>You do not need sliders or a control panel to adjust the light. Adjust everything directly on the screen:<br><br>- Swipe up or down to change brightness from dim to bright.<br>- Swipe left or right to move between cool white, neutral and warm amber tones.<br>- Keep the screen awake while you read.<br>- Return to your last brightness and color temperature the next time you open CatLight.<br><br>A warm book light for night reading<br><br>Choose a warmer tone for a softer bedside glow, or move toward a cooler white when you need a clearer view of the page. The full-screen light spreads across a nearby book more gently than a small rear camera light.<br><br>Simple by design<br><br>CatLight opens straight to the light. The screen itself is the control surface, so you can adjust your reading lamp without searching through menus or interrupting your book.<br><br>Use CatLight as a:<br><br>- Reading light for paperback books and magazines<br>- Book light for reading in bed<br>- Small screen lamp in a hotel room, train or plane<br>- Warm bedside light for a dim room<br>- Soft phone light when a rear camera light feels too harsh<br><br>How to use it<br><br>1. Open CatLight.<br>2. Swipe vertically to set the brightness.<br>3. Swipe horizontally to choose a warm, neutral or cool tone.<br>4. Place the screen near the page and start reading.<br><br>CatLight is a focused screen light for readers who want fast, adjustable illumination without a complicated interface.

## Rankings

- #1,623,015 — Overall

## Permissions and access

### Permissions

- `android.permission.ACCESS_ADSERVICES_AD_ID`
- `android.permission.ACCESS_ADSERVICES_ATTRIBUTION`
- `android.permission.ACCESS_ADSERVICES_TOPICS`
- `android.permission.ACCESS_NETWORK_STATE`
- `android.permission.FOREGROUND_SERVICE`
- `android.permission.INTERNET`
- `android.permission.WAKE_LOCK`
- `android.permission.WRITE_SETTINGS`
- `com.android.vending.BILLING`
- `com.android.vending.CHECK_LICENSE`
- `com.github.xiaofeidev.catlight.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION`
- `com.google.android.gms.permission.AD_ID`

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Source: [Chrome-Stats](https://chrome-stats.com/d/com.github.xiaofeidev.catlight)