iOS has never been an “open” operating system. There are various impediments that Apple forces upon iOS, and you can’t generally introduce applications from outside the App Store, without an escape. In any case, all that changed, when Apple released Xcode 7. Apple wanted to let developers test their apps on their own devices, without having to pay the $99 annual fee for a developer account. So, they allowed developers to use Xcode to install their apps on an iOS device. In this article, we’ll disclose to you how you can utilize this to introduce pretty much any application on your iPhone, or iPad, without having to Jailbreak it.

Note: This strategy works for applications whose source code is available. Apps like flux, and GBA4iOS have their source code available on GitHub, and Bitbucket, etc. You can look for the source code of the application you need on Google, to check if you’ll be able to use this method.

The Tool We’re Using: Xcode 8:

Xcode is the official development environment for iOS applications. We’ll utilize Xcode 8 to install apps onto an iPhone running iOS 10. If you don’t already have Xcode on your Mac, you can download it from the App Store, or straightforwardly from Apple. Xcode 8 supports SDKs for iOS 10, so we can’t use any older versions. If you don’t know what an “SDK” is, don’t worry about it.

Note: If you’re a beta tester for iOS, and have anything greater than iOS 10.0 installed on your iPhone, you’ll need to install Xcode 8 Beta. Xcode 8 only supports devices up to iOS 10. We’ll be demonstrating this on an iPhone 6S running iOS 10.0, using Xcode 8.

Once you have downloaded Xcode on your Mac, you’re almost ready to get going.

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Sideloading Apps on iOS 10:

Before we get to sideloading the application, we’ll initially require the source code for it. Will attempt and install f.lux on my iPhone. By default, the f.lux application is accessible for jailbroken gadgets, yet you can utilize this strategy to get it on your iPhone also. To install the f.lux app on your iPhone, just follow the steps below:

Note: I will be taking this step by step, to ensure that you can understand what to do, even if you’ve never used Xcode before. Users who know the basics of Xcode, feel free to skim through these steps.

1. First, head over to the GitHub repository for f.lux, and click on the link that says “1 release “.

2. Download the source code for f.lux, from the link.                                                                                                          [ad type=”banner”]
3. On your Mac, unzip the file you downloaded, to get the f.lux project folder. Now, launch Xcode 8 on your Mac, and click on “Open Another Project“.

4. Open the folder you unzipped, select the file that says “iflux.xcodeproj“, and click “Open”.

5. Xcode will load the project for you. Click on “iflux project” in the left sidebar.

6. You’ll need to change a couple of settings in order to install the app on your iPhone. First, go to “Xcode -> Preferences “, and click on the “Accounts” tab. You’ll have to add your Apple ID here. You can simply click on the plus icon in the bottom of the screen and add your Apple ID. It doesn’t need to be a developer ID, you can use your free Apple ID, as well.                                                                                                                                 
7. Once you have done that, you will need to change a couple of settings for the Xcode project. Firstly, change the value next to “Bundle Identifier “, and make it anything that is unique, and looks like com.xyz.iflux. In my case, I’ve replaced “xyz” with my name.                                                                                                                            
8. Next, you’ll have to add a “development team” for the project. Simply click on the drop-down box next to “Development Team”, and select “Your Name (personal team) “.

9. You’re all set to install f.lux on your iPhone. Simply connect your iPhone to your Mac. Then, go to “Product -> Destination“, and select your iPhone from the list.

10. Now, clickon the “Run” button in Xcode. Xcode will then begin compiling the app for your iPhone. If you get warnings (yellow triangle signs), don’t worry about them.

11. Xcode will prompt you with an error saying that you need to trust the developer on the iPhone. On your iPhone, go to “Settings -> General -> Profiles and Device Management“.

12. Tap on the entry under “Developer App”, and tap on “Trust”.

13. You can now go to your homescreen, and look for f.lux. Tap on the app to launch it, and it will work!

You can use this method to install any app for which you have access to the source code. A lot of apps have been making their source code available, so that users can easily sideload them, even if their iPhones are not jailbroken. Some apps that have made their source codes available are:

GBA4iOS: A Gameboy Emulator for iOS Devices.

Post Manager: Post/schedule Twitter posts like Buffer, includes a Share Extension

Kodi: A popular media player & entertainment hub

There are a lot of open source apps available for iOS. You can check out the entire list over at GitHub.