One of the things I hated when I started using f.lux is that I was unable to go lower than 2700K during the day. This is the reason why I think freemium or paid software is actually much better. Totally free and open source programs don’t have any support for bugs and problems. I personally hate programs with ads and tracking users is just unethical and plain evil. Free software with good customer support sell ads or user data. The reason why f.lux make so little changes and listen to users so little is because it’s free. In the beginning, I also made Iris free, but after a year full-time work and 0$ donations, I decided to make it Freemium with Pro version. Since you almost can’t make a living from donations you work a side job and you don’t care much about the product. Free vs Paidįree software is great because it’s free but you often don’t have any customer support. I don’t want to tell anything bad, but free software often sell user data to make money. Why Facebook and Google are free?īecause they both track your every move and advertise based on your activity. If something is free you are the product of sale. Geolocation uses a lot of battery and can be used to track users positions which is also not good in terms of privacy. Software like f.lux can easily detect location with only internet request by approximation which is what Iris does. This is quite helpful when you want more precise control of the lighting outside but combined with strange geographic locations it may give wrong values at the wrong time.Īlso, f.lux can’t automatically detect your location without using Geolocation which brings me to the next point. Sun vs Timeįor me, it’s quite unclear why you are locked for only selecting the time and to base day and night calculations only on Sun position. In the past, people often asked me What is the best Color temperature?.Īt one point I just realized that this whole color temperature scale thing is broken and it will actually be better to have a blue light slider from 0 to 100%.Īfter some time it becomes comfortable to work with the color temperature values but why waste your time learning science. Most people are not familiar with the black body color and this color temperature thing only makes them more confused. Color temperature vs Blue lightĪnd what is this color temperature anyway? It’s the strong wavelength of blue light which enters deep into our retina causes eye strain and macular degeneration in the long run. It’s not only the melatonin suppression effect. I want to set the blue light to my comfortable value and maybe automate this based on the time of the day. I just want 1 slider with 0% and 100% blue light. I don’t need all of this day and night graphics of how light affects my sleep and what value is best to sleep better. What my problem really is is that I feel a lot of eye pain from my constant work in front of computer screens. I train a lot, eat good and even with a cup of coffee before bed I sleep well. So I don’t actually need this day and night cycle of the Sun thing. I and 99% of all other people who use blue light reduction software use it because we feel less eye strain when we remove the blue light from our screen at night. Melatonin secretion stops when our eye sees blue light.īut do people problem is actually bad sleep or it is eye pain? Sleep vs Eye pain Not exactly bad, but we are made to have day and night cycle of light and at night you should lower blue light to sleep better. The f.lux app main assumption is that blue light is bad for your sleep. Let’s first start with f.lux 3 which was somehow the first version of f.lux and was actually better than the new f.lux 4 beta which is bloated with not needed features. In this article, I want to make a general comparison between the 2 programs, but take my words with a little grain of salt since I’m a little tendentious □ What f.lux is missing? I wrote to the dev team if they can add custom control of the blue light and schedule by time, but they didn’t respond to me.Īnd this is how I decided to add blue light and color temperature to Iris. I had awesome sleep, but I was feeling really bad eye strain when I used computers. I found f.lux while reading one article about how to feel less eye strain, but what I didn’t like about it was that it was somehow focused on sleep which was not my problem. When I started to have eye problems in 2015 I wanted to be able to manually control the blue light of my screen. F.lux is a popular blue light filter program, but I personally hated several things about this program.
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