Pokémon Home lets players trade Pokémon between games, including the ones on different platforms. This should theoretically allow fans to keep their entire Pokédex from Pokémon Ruby and Sapphire onward, as Pokémon from Gen 3 can be brought forward to the Gen 6/Gen 7 games, through the use of Pokémon Bank on Nintendo 3DS, and sent over to the Pokémon Home app. Pokémon Home has yet to be compatible with a new Pokémon game at launch and there are a few reasons why this is the case.
Pokémon Home launched in February 2020, which meant it was available after Pokémon GO, Pokémon Sword and Shield, and the Pokémon Let's Go games were already released. The app managed to be compatible with the Pokémon Sword and Shield Expansion Pass at launch, but that involved a game that was already available. As of the time of writing, Pokémon Home isn't compatible with Pokémon Brilliant Diamond and Shining Pearl or Pokémon Legends: Arceus.
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Pokémon BDSP still lacks Pokémon Home support, even though they launched nearly six months ago. It might seem as if Pokémon Home might not be important to The Pokémon Company, even though it's a paid service, but there's more to it than that. There are technical issues standing in the way of having Pokémon Home available for new Pokémon games at launch, and there is also a design choice that could be involved, as having Pokémon Home available at launch would potentially dilute the core experience of the series.
The simplest explanation for why the new Pokémon games don't have Pokémon Home support at launch is that it's a lower priority than getting the games themselves out on time. The fact that Pokémon Sword and Shield and Pokémon
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