I believe APNIC requires you to be a registered company unlike RIPE who will allow individuals as customers, but the flip side is that becoming a company in Australia is quite easy paperwork, unlike in Germany where you have to put up a $25000 bond.

Edit: APNIC also wants you to provide some plans for your network upfront while RIPE NCC is more willing to just assume good faith. But their requirements do not seem onerous, and you are not held to the plans, it's just to check you have a need for the resources.