Pokémon Bank and Poké Transporter, the applications necessary for moving Pokémon creatures from Black and White and its sequels to X and Y, is coming in December.

Both may be available on December 27. If you are unfamiliar, the Pokémon Bank is an internet system as a way to store all your Pokémon online. The Poké Transporter is a free companion app to the paid Bank so that it will transfer Pokémon to and out of your games. There’s a handy FAQ at the official Pokémon site that answers a few of the questions surrounding the applications.

The Pokémon Bank may have a free month trial period. The choice to download the free month trial will end on January 31, 2014. After that, with a view to continue using the Bank, you’ll have to pay $4.99 a year.