With the latest release we have removed the annual pass and made sharing islands and cross platform backup available to all. That will allow many more people to share their islands and avoid issues of the game having more functionality for some players. There are now no purchases within the game.
For the players who bought an annual pass, we appreciate your support very much! You will continue to get 1,000 moons per day until the end of your year compared to 500 moons per day for all of the rest of the players. Everything else is now available to all players.
We have submitted the request to Valve to change it to a paid game and understand that it may take around a week before the game becomes a paid game. So, if you have not grabbed it already or you want your friends to get it, now is a great time to get it before the change is made. :)
Thanks for your understanding!
EnsenaSoft Team