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Iris
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.

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HairCare App
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Which is more popular?
Based on our record, f.lux seems to be more popular. It has been mentioned 351 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | justgetflux.com | diffry.com |
| Company | Startup from the United States | — |
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What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
f.lux is recommended for individuals who work late into the night on computers, people sensitive to blue light exposure, and anyone looking to improve their sleep patterns by minimizing screen glare after sunset.
No analysis of Diffry yet.
Walkthroughs and reviews on video.
F.lux Review - Should You Really Use It? [MY EXPERIENCE]
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Diffry - Natural hair platform
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How often each product is chosen within a category, 0–100% relative to the other.


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


I've had some light-sensitivity issues for as long as a remember. So I always get glasses with transitions. On computer though I've always been using flux [0] since it came out. I know that now a lot of OSes are supporting some kind of... - Source: Hacker News / 2 months ago
Nor f.lux, the warm light software that got Sherlocked by every major OS. https://justgetflux.com/. - Source: Hacker News / 5 months ago
Somewhat related: I really like f.lux's "Darkroom" feature. Although I no longer use the app to reduce blue light after the advent of macOS's Night Shift, Darkroom mode tints the screen completely red (like a red version of Color... - Source: Hacker News / over 1 year ago
Tracking Diffry since Mar 2021.
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A very small and free utility for Windows to reduce brightness on LCD/TFT screens.
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