Twilight: Blue light filter

Dana Urrey

Best filter app, works much better than the built in for sure. Easy to set and doesn't seem to drain the battery anymore than a typical utility app, or at least that's been the case on my KYOCERA duraforce pro2. I feel the difference it has on my eyes which strain when I look at a bright screen in the dark, but they feel much better with twilight running. The built-in filter doesn't filter enough to feel any difference. Update, two years later and I still love this!

Walker Shave

I have blue light sensitivity and this app makes it possible for me to use my phone without getting sick. I have it on almost all the time. I love the screen dimming feature, which lets me get the screen even darker than my phone would usually allow. (This way I can read in the dark.) Works reliably and consistently. I wouldn't change anything. Thanks for making this app!

Molly J

I used to love this app and the latest update sucks. For some reason it writes over notifications on my notification bar so that they don't show up at all. I also am no longer getting critical alerts like emails/missed calls. In addition, even when not running, it slows down my phone to a snail's pace. It causes major lagging (4-5second lags for a keystroke or 10+ for copy/paste function). Troubleshooting was unsuccessful. Removal fixed the speed so I know it's this app that is the culprit.

Dania Diaz

This app is very useful for filtering blue light and dimming your screen. My only complaint is that it interferes with photos and screenshots, giving them a red tint. Is there a way to have it not affect the quality of a photo? I have to turn off the app before taking pictures at night. Also, sometimes other actions on the phone will require that it be turned off before continuing.

Katie Hutchison

I am extremely grateful for this app. As someone with photophobia (light sensitivity) from a head injury, this app has literally made it possible for me to have a dim enough screen to utilize my phone for many tasks after a concussion. It took several months after the concussion to be able to do much of this, but without this app plus my phone's dimmer, I probably still would be severely limited in my screen use. The red cast helps a lot. Great functionality, very clear interface. Thank you!