Comparison

Dimmer vs Keep Screen On & Dimmer Screen

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Dimmer

Easily control your device's screen brightness with customizable presets and quick access from widgets. Features include advanced mode for fine-tuning, battery-aware adjustments, and timer-based brightness changes.

Highlights
  • Widget launch for quick brightness presets
  • Advanced mode with fine adjustment and timer
  • Battery mode for automatic brightness adjustment
  • Save and switch between two presets
  • Timer function with alarm notification
  • Color bars for visual brightness adjustment
Features
Read full description

"Dimmer! Brightness control application! Very useful, and for free!" iPhone back light can be adjusted in favorite luminosity very quickly. You can start it with the brightness specified by a shortcut from the widget. Because your iPhone life becomes comfortable ”epoch-makingly". *** Convenient features *** ● Launch from widget You can add brightness presets to widgets.You can quickly access presets with fine brightness. Register a preset in advance from the application, then "Edit" on the widget screen, register the “Dimmer" application from the + button, and you are done. ●Advanced Mode Advanced mode can perform preset function, numerical value fine adjustment and Timer function. ● Battery mode Automatically adjusts to the preset brightness according to the current battery level. Fine pre-adjustment is possible, such as maximum brightness while charging and re-low brightness when the battery level is low. Combined use with widgets makes it even more convenient! ●Preset function Two presets, Preset A and Preset B, can be stored. ●Timer function When the set time elapses, there is an alarm notification, and when you tap on the notification you can set the brightness preset. ●Color bars function Displays a color bar in the background for brightness adjustment. ●Start & Preset Function Upon application startup, the screen brightness is set to the value set in Preset A. ●Start & Preset A ◀▶ B For example, if you set a high brightness for Preset A and a low brightness for Preset B, each time the application is launched, it will switch between Preset A>B>A>B, which is useful when temporarily brightening or dimming the screen. ※If you have the iOS setting automatic and make a setting change through this app, it reverts back to automatic iOS setting once you sleep/wake. --- URL schema --- brightness://brightness.newforestar.com?XXX (brightness 0~100)

About

Keep Screen On & Dimmer Screen

Prevent your device's screen from turning off automatically and adjust its brightness to a very low level. This utility is ideal for tasks like long uploads or downloads, or for developers needing continuous screen visibility.

Highlights
  • Keep screen on indefinitely
  • Reduce screen brightness to zero
  • Prevent screen timeout
  • Useful for long uploads/downloads
  • Aids developers needing constant screen visibility
Features
Read full description

Keep Screen On & Dimmer Screen brightness will help you do two those things in zero tap! Just open the app, your phone screen will be on forever and your phone screen brightness will down to zero too! Lower your phone screen brightness is an impressive feature of this app because most of us want to keep screen on and lower phone screen brightness together. Timeout to turn off is also a good feature! This app is useful when you want to keep screen on while uploading video to YouTube, downloading big file or for developer who want to keep screen on! Thank you!

Screenshots

Dimmer4 screens
Keep Screen On & Dimmer Screen4 screens

Verdict

The call

The clearest difference is rating: Dimmer at 2.7 against Keep Screen On & Dimmer Screen's 1.7. Dimmer also leads on in-app purchases (none vs 1) and ratings volume (406 vs 6). Keep Screen On & Dimmer Screen's advantage is ads (none vs shown). On price, update cadence, monetization model and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Keep Screen On & Dimmer Screen sells 1 one-off in-app purchase. Dimmer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Dimmer holds the better App Store score, 2.7 against 1.7. That said, the two scores are not equally well evidenced: Dimmer has 406 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 42% of Dimmer's written reviews are positive against 25% of Keep Screen On & Dimmer Screen's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.

Scorecard6 real differences · 4 level
Dimmer versus Keep Screen On & Dimmer Screen: the parameters behind the verdict, then further details
ParameterDimmerKeep Screen On & Dimmer Screen
PriceFreeFree
Rating2.7 (406 ratings) — better1.7 (6 ratings)
Positive reviews42.4% of reviews — better25.0% of reviews
Number of ratings406 — better6
Update frequencyEvery 3 monthsEvery 3 months
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better13.0
Further details — not scored
Size8 MB33 MB
Age rating4+17+
Developernewforestar co,.ltdNghi Doan

Customer experience

Dimmer

All ratings399 ratings
Positive40.9%
Neutral7.3%
Negative51.9%
Written reviews609 reviews
Positive42.4%
Neutral9.5%
Negative48.1%

Keep Screen On & Dimmer Screen

All ratings5 ratings
Positive20.0%
Neutral0.0%
Negative80.0%
Written reviews8 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

Bugs and requests

Dimmer

Reported bugs

3 issues
  • Brightness reverts to high level on unlock
  • App crashes on launch for some users
  • Brightness slider doesn't work as expected

Requested features

3 requests
  • Ability to dim screen below phone's minimum brightness
  • Option to keep brightness setting after screen lock
  • Integration with notification center for quicker access

Keep Screen On & Dimmer Screen

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Dimmer

No in-app purchases

1 purchases

Keep Screen On & Dimmer Screen

One-time1
  • Remove ads forever$3.99

Questions

Is Dimmer free?
Dimmer is free to download, with no in-app purchases.
Is Keep Screen On & Dimmer Screen free?
Keep Screen On & Dimmer Screen is free to download, with in-app purchases available.
Which has better reviews, Dimmer or Keep Screen On & Dimmer Screen?
Dimmer is rated higher. Dimmer averages 2.7 out of 5 from 406 ratings, while Keep Screen On & Dimmer Screen averages 1.7 from 6 ratings.
Do Dimmer or Keep Screen On & Dimmer Screen have ads?
Dimmer shows ads; Keep Screen On & Dimmer Screen does not.
Which is updated more often, Dimmer or Keep Screen On & Dimmer Screen?
Dimmer ships an update every 3 months, and Keep Screen On & Dimmer Screen every 3 months. Most recently, Dimmer was updated on November 1, 2026 and Keep Screen On & Dimmer Screen on October 30, 2026.

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