[tapirl]

The cost, $99/y + Mac machine + iOS devices

[coryl]

You can get a used Mac mini relatively cheaply these days if you're on a budget. Or turn your PC into a hackintosh (less ideal).

[V-2]

But on the top of that you still need an iPhone, right?

[wattson12]

you could (depending on the app) write and submit an app without ever running it on a device. Obviously not recommended though

[inside_world]

I guess you most likely will need an Apple device. Otherwise, potential headaches.