Best Screen Dimmer App for Android: Try Extra Dim First

If the lowest brightness on your phone is still too bright in a dark room, look in the settings before you look in the store. Android has a switch called Extra dim that takes the screen below its normal minimum, and Samsung has one with the same name. A dimmer app is for a phone that lacks it, or for extras such as a timer or a coloured tint.

We read Google’s and Samsung’s help pages for the built-in tools, Android’s developer documentation for how dimmer apps work, and the Google Play listings of the apps. Five of the ten apps this article listed in 2019 can still be matched to a listing, and two of those five we would not install today.

What your phone already does

Extra dim

Google’s accessibility help describes Extra dim as a way to dim the screen beyond the phone’s minimum brightness so that it is more comfortable to read. Open Settings, tap Accessibility and turn Extra dim on. On a Pixel 10 or later, Google says Extra dim is part of the brightness slider in Quick Settings.

On a Galaxy phone, swipe down with two fingers to open the Quick settings panel and tap Extra dim. Samsung says you can add the icon if it is not there. Touch and hold it to reach an Intensity slider and a “Turn off after restart” switch, which is worth turning on in case you set the screen too dark to read. The steps are on Samsung’s eye strain page.

Night Light and Eye comfort shield

These change the colour of the screen, not how dim it can go. Google’s Night Light reduces blue and turns the screen amber or red, and can run from sunset to sunrise or at times you set. On a Pixel it is under Settings, Display & touch. Samsung’s version is Eye comfort shield, in the Quick settings panel, with an Adaptive mode that shifts the colour through the day. Samsung notes it may not be on every model.

Dark theme

Dark theme, which Samsung calls Dark mode, turns white backgrounds dark in the system and in apps that support it. It is under Settings, Display. If white pages are what hurts at night, this may be all you need. For websites, see our guide to Android browsers with dark mode.

How a dimmer app works

The apps below lay a dark, see-through layer over everything on the screen. Their listings call it a filter or an overlay. Android’s documentation describes the permission behind it, which settings show as “Display over other apps” and Samsung as “Appear on top”: it lets an app create windows on top of all other apps, and you have to grant it yourself. The same documentation treats such layers as a risk, because one can hide what you are really tapping. Payment and banking apps are strict about it. Google Pay’s help page says it will not make transactions while another app draws over the screen and tells you to close screen filter apps. Krungsri, a Thai bank, says its app cannot be opened while it detects an overlay, and Malaysia’s GXBank says it disables tapping.

Since Android 12, the system also blocks taps that pass through another app’s overlay once it is more than 80% opaque. Accessibility tools are exempt, and most of the dimmers below ask you to switch on an accessibility service. Android’s security pages describe apps with that permission as able to read and interact with the screen, which is far more than a dimmer needs. Most of these listings say the app reads or collects nothing through it. You are taking the developer’s word for that, which is one more reason to use Extra dim if you have it.

One practical point. Darker’s listing warns that Android blocks the Install button while the app is running, and that pausing it fixes this. Try the same with any dimmer when a button refuses to respond.

Screen dimmer apps compared

Free with no ads

Darker states in its listing that it is fully functional and carries no advertisements. The free version dims down to 20% on its own scale, and going lower is a paid extra. It needs an accessibility service to work.

Screen Dimmer – OLED Saver has neither an ads label nor in-app purchases on Google Play. Its listing is short: a dimming layer you adjust from the notification panel, drawn through an accessibility service. The developer pitches it at people who notice flicker on OLED screens, and adds that how much it helps varies by person and display.

Twilight was on this list in 2019 and is still here. It is a blue light filter first. The red tint follows the sun, worked out from your local sunset and sunrise times, and the listing says it can also take the screen far below what the backlight control allows. Twilight asks for accessibility only if you want the lock screen and notifications filtered too. Pick it over Night Light when you want the tint and the dimming in one place.

Super Dim keeps to the basics. The free version dims the main part of the screen and lets you choose the filter colour. If the screen ends up too dark to see, the listing says a shake of the phone turns the filter off.

Free with ads

Night screen is the app the old article called Night Screen. The free version is a single slider with a blue light filter. Its listing is candid that ordinary dimming pauses in some apps: the paid “advanced dimming”, which uses an accessibility service, is what keeps the filter on there and over the status bar.

Night Owl, also from the old list, says in its listing that it uses “Display over other apps” to put the filter on screen, with accessibility as a beta option. It can start and stop on a timer or by the sun.

Screen & Notifications Dimmer offers much the same set. Lower Brightness is plainer, a percentage and little else, with a paid Pro version that drops the ads and covers the whole screen.

Which one to pick

• Your phone has Extra dim: use it. Nothing to install and no permission to grant.
• White pages are the problem, not brightness: Dark theme.
• You want a warmer screen at night: Night Light or Eye comfort shield. Twilight if you also want it dimmer.
• No Extra dim, and you want no ads: Darker if 20% is low enough, Screen Dimmer – OLED Saver if not.
• You want it to start by itself in the evening: Night Owl or Screen & Notifications Dimmer, with ads.

Whichever you choose, pause it before opening a banking or payment app. Google also lists a lower screen brightness and Dark theme among the settings that use less battery. For the rest of that subject, see battery saver apps for Android.

What happened to the old list

Twilight, Night Owl and Night Screen are covered above. Velis Auto Brightness is still on Google Play, but its listing opens with a notice that the app has been discontinued and remains only for existing users. CF.lumen is listed too, and its own developer warns there that it may simply stop working on newer versions of Android. We have left both out.

Lux, Cobrets and Midnight no longer turn up in a search of the store. There is an app called Dimly today, from MetaPass Inc., but we could not tie it to the 2019 entry. Brightness Widgets is too common a name to trace.

Quick answers

How do I make my screen darker than the minimum on Android?

Open Settings, tap Accessibility and turn on Extra dim. On a Galaxy phone it is an icon in the Quick settings panel. On a Pixel 10 or later it is part of the brightness slider.

What is Extra dim on Samsung?

A Samsung setting that dims the screen for more comfortable viewing. Tap its icon in the Quick settings panel, then touch and hold the icon to set the intensity.

Does Android have a blue light filter?

Yes. Google calls it Night Light and Samsung calls it Eye comfort shield. Both can run from sunset to sunrise.

Why does my banking app not work with a screen dimmer on?

Because the dimmer draws over the app, and some banking and payment apps refuse to run or to accept taps while anything does. Google Pay asks you to close screen filter apps. Pause the dimmer and try again.

Is there a screen dimmer app with no ads?

Darker and Screen Dimmer – OLED Saver both say they have no ads, and Twilight and Super Dim carry no ads label on Google Play.