I'm sorry in advance if this question has been asked a couple of times before, but I have been reading and trying different solutions for hours now with no luck.
I have an iPhone running iOS 12 for development, and an Apple ID with free developer account, and a mac running on version 10.10, and it doesn't belong to me so I cannot upgrade the system. Unfortunately, it means I'm stuck at Xcode 7.2, which doesn't support iOS 12, I have tried installing the image disks already, but that didn't help as I still can't normally build and run the app to my iPhone by just connecting the iPhone.
I was wondering if there's any other way I can get the app on my iPhone without paying for a full development account? This seems nearly impossible to me at this point but I hope you can help me out. I would normally opt for just simulating the app, but this one relies completely on the gyroscope of the device so I need to test it on an actual device.
Thanks in advance.