Afaik there is no ANT+ profile that applies to the Bushido.
So there is no public specification of ANT communication parameters (radio frequency, interval, device type id, ...),
and there's no specification of the data payload.
You could ask Tacx, if they are willing to disclose thaat information to you.
Besides, isn't it a bit strange that you "must program" an app, if there's no evidence that this can be done from publically available specifications? Do they expect you to hack that thing?
Cheers,
OMB