Hi,
I've installed the copy of AmpliTube from this "Free Download" link https://www.ikmultimedia.com/products/amplitubecs/ - my expectation based on what's written there is that I should be able to install this, open up Custom Shop, try / buy specific amps / cabs / effects etc. My understanding is that you do not need to pay for AmpliTube itself, just the specific bits in Custom Shop that you buy.
However, when I open up the AmpliTube 4 app (that was installed from the above installer), it now says "This copy of AmpliTube is not authorised" and plays a white noise hiss every few seconds to remind me. This is despite the Custom Shop app also being open. It appears the software wants me to get a full AmpliTube 4 license before can try / buy anything in Custom Shop.
Does anyone have any idea how to fix this?