Pokémon HOME is the new Pokémon storage solution introduced in 2020 and intended to pave the way forward with Pokémon connectivity for future games. It is releasing on Nintendo Switch, iOS and Android devices.
Pokémon HOME is a cloud based system that allows players to connect with all Pokémon games. This includes the Nintendo 3DS games through Pokémon Bank, Pokémon GO, Pokémon Let's Go, Pikachu & Let's Go, Eevee, Pokémon Sword & Shield, Pokémon Brilliant Diamond & Shining Pearl and Pokémon Legends: Arceus allowing for players to store all their Pokémon in one place.
Although the utility connects with all the games, the connections with Pokémon Bank, Pokémon GO and Pokémon Let's Go, Pikachu! & Let's Go, Eevee! are only one way. Once you put a Pokémon from these games into Pokémon HOME, you won't be able to put any into those games from HOME. Pokémon Sword & Shield, however, can both deposit and withdraw Pokémon from Pokémon HOME.
The utility also has the capability of allowing for trades with friends and others around the world directly through the Pokémon HOME app either locally or online.