Comparison

Dimmer vs Blue Light Filter

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

Blue Light Filter

Reduce eye strain and improve sleep with an adjustable blue light filter. Organize your files, photos, and videos with an integrated file manager. Enjoy a seamless web browsing experience with built-in filtering and bookmarking.

Highlights
  • Adjustable blue light filter
  • Eye strain relief
  • Improved sleep quality
  • Intuitive file manager
  • Zip/unzip support
  • Integrated web browser
Read full description

Blue Light Filter is your all-in-one solution for a comfortable and productive digital experience on iOS. Equip your device with our adjustable blue light filter to alleviate eye strain and improve sleep quality, especially during nighttime browsing and reading. Effortlessly manage and organize your documents, photos, and videos with our intuitive file manager, featuring zip/unzip support. Enjoy a seamless web browsing experience with an integrated blue light filter and easy access to bookmarks and history. Designed with a user-friendly interface, the app ensures easy navigation for users of all ages, and is fully optimized for iOS with Dark Mode compatibility, haptic feedback, and quick actions via 3D Touch. Download Blue Light Filter today and transform your screen time into a safer, more comfortable, and more efficient experience. Privacy Policy: https://riviacorp.com/privacy-filter/ Terms of Services: https://riviacorp.com/terms-filter/ Support: https://riviacorp.com/

Screenshots

Dimmer4 screens
Blue Light Filter3 screens

Verdict

The call

The clearest difference is rating: Blue Light Filter at 3.3 against Dimmer's 2.7. Blue Light Filter also leads on ads (none vs shown) and update cadence (weekly vs every 3 months). Dimmer's advantage is review sentiment (40% vs 3%) and in-app purchases (none vs 5). On price, ratings volume, 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. Blue Light Filter sells 5 in-app purchases, starting at $4.99 per 7 days. Dimmer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Blue Light Filter holds the better App Store score, 3.3 against 2.7. Both are backed by a comparable volume of ratings — 399 and 137 respectively. Written reviews complicate that: 40% of Dimmer's written reviews are positive against 3% of Blue Light Filter's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Dimmer ships an update every 3 months, Blue Light Filter weekly. The most recent releases landed on September 24, 2026 and September 21, 2026 respectively.

Scorecard6 real differences · 4 level
Dimmer versus Blue Light Filter: the parameters behind the verdict, then further details
ParameterDimmerBlue Light Filter
PriceFreeFree
Rating2.7 (399 ratings)3.3 (137 ratings) — better
Positive reviews40.2% of reviews — better2.7% of reviews
Number of ratings399 — better137
Update frequencyEvery 3 monthsWeekly — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS11.0 — better17.0
Further details — not scored
Size8 MB19 MB
Age rating4+17+
Developernewforestar co,.ltdRivia Corp s.r.o.

Customer experience

Dimmer

All ratings399 ratings
Positive40.9%
Neutral7.3%
Negative51.9%
Written reviews249 reviews
Positive40.2%
Neutral9.2%
Negative50.6%

Blue Light Filter

All ratings137 ratings
Positive56.2%
Neutral2.9%
Negative40.9%
Written reviews37 reviews
Positive2.7%
Neutral5.4%
Negative91.9%

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

Blue Light Filter

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Dimmer

No in-app purchases

5 purchases

Blue Light Filter

Subscriptions5
  • Weekly3 Days trial$4.997 Days
  • 1 month3 Days trial$6.991 Month
  • Blue Light Filter - Monthly3 Days trial$7.991 Month
Show 2 more
  • 1 year3 Days trial$24.991 Year
  • Annually$29.991 Year

Questions

Is Dimmer free?
Dimmer is free to download, with no in-app purchases.
Is Blue Light Filter free?
Blue Light Filter is free to download, with in-app purchases available.
Which has better reviews, Dimmer or Blue Light Filter?
Blue Light Filter is rated higher. Dimmer averages 2.7 out of 5 from 399 ratings, while Blue Light Filter averages 3.3 from 137 ratings.
Do Dimmer or Blue Light Filter have ads?
Dimmer shows ads; Blue Light Filter does not.
Which is updated more often, Dimmer or Blue Light Filter?
Dimmer ships an update every 3 months, and Blue Light Filter weekly. Most recently, Dimmer was updated on September 24, 2026 and Blue Light Filter on September 21, 2026.

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