GO Application

GO Application (GOアプリケーション GO apurikēshon) is a simulation program created by Bill. It's designed to place the user into a virtual world that allows them to fully communicate with people and Pokémon all across the world.

It's featured in Tales of the White Vast in the Let's Go! Bonds of Friends Saga, in which Hilbert finds himself trapped in the simulation device after suffering temporal amnesia.

Story
During an unknown period of time, Bill created the GO Application so that humans could inhance their relationship with their Pokémon. It was built in Pallet Town, likely sometime after Hilbert's journey through the Kanto region, since it never appeared or was mentioned during the Truth and Ideals Saga.

After being given a life sentence in prison, Giovanni finally finds himself free after some Team Rocket Grunts finally come to rescue him. Giovannimakes it his next priority to once again, seek out Pokémon and take over the world and specifically takes an interest in the GO Application after realizing he could possibly control many Pokémon.

Without Bill knowing, the GO Application was secretly repurposed by Team Rocket to erase the memories of every human and Pokémon that enters the simulation device.

Trivia

 * The GO Application is based on the iOS game, Pokémon GO.