'F.lux' Articles

Developers Behind F.lux Call on Apple to Allow F.lux App for iOS Devices

With iOS 9.3, Apple introduced Night Shift, a feature that is designed to cut down on nighttime blue light exposure from iOS devices to encourage better sleep. Its similarity to the popular f.lux app for Mac did not go unnoticed, especially since Apple put a stop to an f.lux for iOS app just two months before Night Shift debuted. The developers behind f.lux have now published an official response to Apple's Night Shift feature, calling Apple's move to address nighttime exposure to blue light a "big commitment and an important first step." They ask Apple to take its support a step further by implementing the tools that would allow for an App Store version of the f.lux app. We're proud that we are the original innovators and leaders in this area. In our continued work over the last seven years, we have learned how complicated people actually are. The next phase of f.lux is something we cannot wait to ship to the world. [...] Today we call on Apple to allow us to release f.lux on iOS, to open up access to the features announced this week, and to support our goal of furthering research in sleep and chronobiology.F.lux for the Mac has been available for years and is popular in the Mac community with users who want to avoid blue light at night. Research has suggested that bright light exposure (especially the blue wavelength) at night can interrupt the circadian rhythm, causing sleep problems and other harmful effects on the immune system. While there's been a Mac solution to blue light for some time, no such tool has been available on a non-jailbroken iOS device. F.l

F.lux for iOS No Longer Available After Apple Says Side-Loading Violates Developer Agreement

F.lux, a popular app for the Mac that allows users to adjust the color of their screen based on the time of day, yesterday expanded to iOS with a beta app, but as of today, the app is no longer available. Because iOS does not have the necessary documented APIs to allow f.lux to function, f.lux was skirting the App Store with private APIs and asking users to install its iOS app through Xcode, using a technique called side-loading. Apple has now informed f.lux that asking people to side-load apps onto their iOS devices violates the Developer Program Agreement, so f.lux can no longer be installed on iOS devices using Xcode.Apple has contacted us to say that the f.lux for iOS download (previously available on this page) is in violation of the Developer Program Agreement, so this method of install is no longer available. We understood that the new Xcode signing was designed to allow such use, but Apple has indicated that this should not continue.For those unfamiliar with f.lux, it's an app that adjusts the blue light of a screen based on the time of day to avoid interfering with the body's circadian rhythm. During the day, f.lux mimics natural daylight, but at as the sun sets, it cuts down on the amount of blue light and makes the screen more yellow, which is said to encourage better sleep. F.lux is a popular Mac app that's been downloaded 15 million times, but with side-loading no longer available, f.lux for iOS is non-existant. F.lux's developers are urging customers who want f.lux for iOS to send feedback to Apple, as the company would need new documented APIs to

F.lux for iPhone and iPad Launches in Beta Outside of App Store

F.lux, popular Mac software that adjusts the color of your computer's display to adapt to the time of day, has been released for iPhone and iPad in beta outside of the App Store. The app can be downloaded and side-loaded on iOS 9 devices using Xcode 7 on a Mac running OS X 10.10 Yosemite or later. F.lux will adjust your iPhone or iPad display to appear like sunlight during the day, and warm during nighttime hours to avoid looking at a bright screen. The app has settings to adjust the brightness level during the day and night, and you can also configure a time that you normally wake up each day. Apple does not allow developers to access the Private APIs that f.lux requires to work on iOS, so the app is unlikely to appear on the App Store unless that policy changes. Since the app is side-loaded, there are no automatic updates, so the beta performs a daily update check and will display a message if a new version is available. How to Sideload F.lux on iPhone and iPad F.lux has provided step-by-step instructions on how to sideload the app on iPhone or iPad.Download and install Xcode 7 from the Mac App Store Download F.lux for iOS, unzip and open the “iflux.xcodeproj” project in Xcode Open Xcode > Preferences > Accounts and enter your iCloud or developer credentials Under Targets > iflux > General > Identity, give the Bundle Identifier a unique name Under the same Identity > Team menu, select your iCloud account or Developer profile Next, connect your iPhone or iPad to a Mac using a Lightning cable and follow these steps: From the Xcode Product menu, choose