How to Sideload F.lux App on Your iPhone and iPad [No Jailbreak]


Developers of the popular f.lux app for Mac have today launched a new beta of the automatic screen brightness adjustment app for iPhone and iPad, that doesn’t require jailbreaking for installation as opposed to previous iOS versions that were released on Cydia. Since Xcode 7 lets you install apps directly to your iOS device using a free account from Apple, the developers of f.lux have released a beta version for people to sideload and try the app on their iOS devices.


Sideloading an app requires a few more steps than installing one directly from the App Store but is certainly worth your time. Here’s what you need to do:

Step 1:

Download f.lux for iOS for use with Xcode 7.

Step 2:

Open the “iflux.xcodeproj” project in Xcode and go to Preferences > Accounts and enter your iCloud or developer credentials.

Step 3:

Under Targets > iflux > General > Identity, add a word to the end of the Bundle Identifier to make it a unique name.


Step 4:

In the same place, under Identity > Team, select your iCloud account or Developer profile.

Step 5:

From the Xcode Product menu, choose Destination and select your iOS device.

Step 6:

Now press Cmd-R (on your keyboard) when you’re ready to install f.lux. When you first run, you’ll be prompted to open Settings > General > Profile on your device, and trust your developer account. Run again, and allow location and notifications (things don’t work so well without both of these).

That’s it, you should now have f.lux installed on your iOS device. Enjoy!


  • glacasse

    Great tip guys! Very happy with the result.

  • Finally had a chance to install this. It’s frickin’ amazing! Loved F.lux on my Mac and now it’s on my iPhone without a jailbreak.

  • Tim

    Cool, thanks for the tip! One question, will Apple approve an App with this functionality? Just wondering if I should wait for the official version. This could do wonders for my sleep.

  • Doesn’t look like it, which is why F.lux has to be sideloaded.

  • Tim

    Damn, I wish they’d just bake this in to the OS. Ok, looks like I need to learn how to sideload. Will my backups moving forward have this app in them? Thanks again.

  • einsteinbqat

    Thank god! Finally!

  • WayJ

    Hi glacasse, Apple doesn’t allow this and the download link doesn’t work anymore. Could you please send me a copy of that file? A Dropbox link would be perfect as I don’t dare posting my email address here. Thank you heaps!

  • WayJ

    Hi Gary, may I ask for a copy? Thanks!!!