TL;DR: If you want to own a .hh domain, you will need to visit manager.hns.domains starting October 23rd, 2019 to claim it. Pricing will be updated soon after public access is enabled on October 25th.
Registration cost: Claiming a domain will cost 100hbar during the sunrise period. Once we’ve thoroughly tested the platform and contract this will be updated to reflect the value of lower character domains.
Yearly rent: Owning a .hh domain will cost 100hbar per year regardless of registration price. Anyone can renew a domain at any time, for up to 5 years time. This means you can guarantee ownership of your name for as long as you wish.