Lux Alarm

F-Droid Open Source | Alarm Clock

6 Downloads 13 Views v2.4 2.37 MB 4.1+

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(2.37 MB)

Editor's Overview

Lux Alarm is a alarm clock application developed by F-Droid Open Source, packaged as a single Android APK of version 2.4 weighing in at 2.37 MB. The package targets Android 4.1+ and above. Below you'll find the publisher's own description, a quick spec sheet, and a short buyer-beware checklist so you know exactly what you're installing before tapping download.

Install Checklist

Only download through the button on this page — never from third-party mirrors or shortened links, which are the most common way malware spreads.
File size is a light 2.37 MB, so it installs quickly even on modest connections.
This build is signed by "F-Droid Open Source" — always verify the developer name matches what's listed on the app's official store page before installing an update.
After install, Android may prompt you to allow "Install from unknown sources" — approve only this one install, then revoke the permission in Settings > Apps > Special access.
We link directly to the APK file or the publisher's repository; we do not modify the binary. Always run a virus scan after any sideloaded install.

About this app

Stop Oversleeping with Lux Alarm

Tired of hitting snooze and waking up late? Lux Alarm ensures you actually get out of bed by requiring light to silence the alarm.

How it works

To stop the alarm, you must get up and open your blinds or turn on the light. The app uses your phone's sensor to detect brightness; by the time the alarm turns off, you are already on your feet and ready to start your day.

Key Features

• Smart Light Detection: Uses your phone's sensor to ensure the alarm only deactivates once your environment is bright.
• Adjustable Sensitivity: Customize the required light level to account for gloomy weather or different room setups.
• Modern Interface: A clean, intuitive design based on Material Design 3 for easy navigation.
• Circadian Support: Waking up with light helps regulate your natural sleep cycle and reduces morning grogginess.

Details

Version	v2.4
Size	2.37 MB
Developer	F-Droid Open Source
Category	Alarm Clock
Package	com.dsalmun.luxalarm
Android	4.1+
Last Updated	Oct 29, 2026
Downloads	6

Frequently Asked Questions

Is Lux Alarm free to download?
Yes. The APK file linked from this page is free. The developer may offer in-app purchases once installed, but obtaining the installer itself costs nothing.

What Android version does Lux Alarm require?
Android 4.1+ or newer. Installing on older devices may cause crashes or refuse to install.

Is Lux Alarm safe to install?
We link to the exact APK published by F-Droid Open Source. We do not modify the file. Still, as with any sideloaded app, scan it with a reputable antivirus before opening it, and only grant permissions the app genuinely needs.

How do I update Lux Alarm?
Install the newer version on top of the old one — Android will keep your data. If the signature differs, uninstall first (you may lose local progress).

Why is the app not installing?
Common causes: not enough storage, an older Android version than 4.1+, or a conflicting build already installed. Free up space, check your OS version, and uninstall any previous copy before retrying.

How to Download & Install Lux Alarm

Tap the Download APK button above and save the file to your device.
Open your device Settings → Security (or Apps → Special access → Install unknown apps) and allow your file manager or browser to install unknown apps for this one file only.
Open the downloaded com.dsalmun.luxalarm.apk file from your Downloads folder.
Tap Install and wait for Android to finish.
Open «Lux Alarm» by F-Droid Open Source and grant only the permissions it actually needs.
Revoke the "unknown sources" permission once you are done installing.

Note: this page hosts or links to the installer only. The application name, icon and description are provided for identification. All trademarks belong to their respective owners.