If you have a PC or Mac then you should be able to use those to operate the Bkool as a controllable trainer, but it often requires a bit of a fiddle to enable a specific Ant+ FE-C mode. I put some instructions together to do this in the link Gerrie gave, but the specific post is here:
If you are stuck with the iPad then @Iker_Arri seems to have got the North Pole CABLE bridge to work correctly with an update, but this is more money to spend: