Hi Trevor,
If you are using iPhone or iPad you don't need an emulator, you just run BridgePal from within the Safari browser. This is possible because all the BridgePal app displays are in fact just html displays rendered in a browser encapsulated within the app.
The BridgePal app does have a few features which are not available when running within a browser. For example, you need to know the ip address of the PC running the scoring program, whereas the BridgePal app discovers this automatically. However, there are methods to configure the router or the PC so that the PC always receives the same ip address when connecting to the wifi network, so this is not a significant problem.
The procedure for using BridgePal from a browser is described in a bit more detail at
https://mirgo2.co.uk/bridgepal/index.php?section=22John