
f.lux
LightBulb
Red Moon
RedshiftGUI
Dimmer
Iris mini
Iris
The app filters the blue spectrum on your phone or tablet after sunset and protects your eyes with...

DevTools Advanced
FullStackToolkit
DevFinanceTools
JSON Formatter & Validator
AllDevToolsHub
Boop
DeveloperTools.Tech
120 free browser-based developer utilities. No sign-up required.

Which is more popular?
Based on our record, Twilight seems to be more popular. It has been mentioned 4 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | twilight.urbandroid.org | devtoolstack.io |
| Pricing | — | |
| Listed in |
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
Walkthroughs and reviews on video.
Twilight doesn't make any sense...
More videos
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Twilight and DeveloperToolStack. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


For screens, have you tried blue light blocking glasses and/or software to change the color temperature? I recommend f.lux and Twilight. I'm sure someone else will chime in with a glasses recommendation. Source: about 4 years ago
Https://twilight.urbandroid.org Harmonize your screen with the Sun cycle. Source: about 4 years ago
Twilight allows lowering the screen brightness lower than the built-in brightness slider. Source: about 4 years ago
Tracking DeveloperToolStack since Aug 2026.
When comparing Twilight and DeveloperToolStack, you can also consider the following products.

f. lux is a piece of software for Windows, Mac, Linux, iOS, and Android that provides a blue light filter over your screen. Research suggests limiting our exposure to blue light in the hours before bedtime can help us fall asleep faster.
Compare f.lux to Twilight or DeveloperToolStack:

A collection of developer tools in one place in your browser
Compare DevTools Advanced to Twilight or DeveloperToolStack:

Background application that adjusts screen gamma, making the colors appear warmer at night...
Compare LightBulb to Twilight or DeveloperToolStack:

Free, no-signup developer tools for technical SEO: robots.txt, sitemap.xml and .htaccess generators, plus practical guides. Everything runs in your browser.
Compare FullStackToolkit to Twilight or DeveloperToolStack:

Screen filter for night time phone use.
Compare Red Moon to Twilight or DeveloperToolStack:

Free, no-signup calculators for the money side of building software and freelancing
Compare DevFinanceTools to Twilight or DeveloperToolStack: