AR-Field

The AR-Fields (ARフィールド), also rendered as AR Fields, are spaces between the and the Human World created by Leviathan. They resemble a ruined version of the Human World, as they are simulations of the world Leviathan will create if it manages to take over it. The AR-Fields are the only place where Appmon can materialize without apprealizing. Only an App Driver can enter an AR-Field using their App Drive. Damage to the AR-Field landscape can affect the Human World, such as causing power outages and inducing irregular behavior in digital appliances.

Cyber Arena
The Cyber Arena (サイバーアリーナ) is a place where Appmon compete. is the referee of the Cyber Arena. The Cyber Arena seems to be able to appear in any AR-Field, as Haru Shinkai, Eri Karan, and Torajiro Asuka can access it from the Fujimizaka Middle School, while the can access it from the Hifumigaoka Middle School.

Ultimate Tour island
The Ultimate Tour island is an island where the Appmon Cemetery is located.

Appmon Cemetery
The Appmon Cemetery (アプモン墓場) is a legendary place where obsolete Appmon are sent.

Bi Royal Palace
The Bi Royal Palace (バイ王宮) is 's stronghold. Its name is a pun on "Biomon" (バイオモン), "royal palace" (王宮) and "emergency" (応急).

Beauty Palace
The Beauty Palace (ビューティーパレス) is 's stronghold.

Ikasa-Mansion
The Ikasa-Mansion (イカサマンション) is 's stronghold. Its name is a pun on "mansion" and "fraud" (如何様).

Charisma Castle
The Charisma Castle (カリスマ城) is 's stronghold.