I have and use AltStore. It's amazing what they did, but it's certainly not Apple-sanctioned; they have to jump through a large amount of hoops in order to get

I have and use AltStore. It's amazing what they did, but it's certainly not Apple-sanctioned; they have to jump through a large amount of hoops in order to get your code signing certificate and then get iTunes to install the app for you. This also requires giving AltStore your iCloud password, among other things, and it resigns the app as yours. It technically works, but it doesn't work well.