iOS – Run/Debug/Install builds over Wi-Fi

(Before you read make sure your running IOS 11 and Xcode 9!) Connect your device (Via USB), once you do go on 'Add Additional Simulators' (See image 2 at the bottom), and tick 'connect via network' (See Image One). Once XCode proccesses this, disconnect the device (via USB) and it should now appear with a globe next to it (See image 2)! Also make sure the device and computer are on the same network!

Image 1

Image 2

Using Xcode 9 you can debug over wifi(same network).

Make sure you have at least Xcode 9 or later and a device with iOS 11 or later

1- Open your project on Xcode

2- Plugged in your iPhone with USB cable.

3- Open Window > Devices and Simulators You should see your device as connected devices

4- Select Devices from the top, Select your device from left and Check the “Connect via network” box

5- Now if Xcode can connect to your device via network, you should see a network icon after your phone name

6- Unplug your USB cord

7- Go back to Xcode and Hit the Run button

Now by using Xcode 9 and iOS 11 it is possible to run apps by using Wi-Fi.

Connect the iPhone via USB, go into the device window (Cmd-Shift-2), select your phone, and check the connect via network box.

More thorough instructions with screenshots here

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Pre-Xcode 9 answer:

Over Wi-Fi installing and debugging of applications is not possible in iOS.

But there are some websites where you can upload your builds and then download on device and test it.