Rei Katsura

is a main character in Digimon Universe App Monsters. His Buddy Appmon is .
==Appearance==
Rei is a teen-aged boy with pale skin, greyish-green hair and red eyes. He wears a black hooded jacket over a grey hooded sweatshirt. He also wears dark blue calf-length capris pants with a white zipper pattern, and white sneakers.
==Description==
Rei is a skilled hacker. He is usually untrustful of others, and initially suspected to be working with Leviathan.
==Etymologies==
;Rei Katsura (桂 レイ)
*Ja: . Japanese surname that means "". Possibly from , author of . It might also refer to the or as a reference to the .
*Ja: . A Japanese gender-neutral name. Possibly from , author of The Singularity Is Near. It also means , and with Hajime is a pun on "".
==Fiction==
===Anime===
Rei is an App Driver paired with . He is aware of Haru Shinkai's existence. Soon after Haru and collect their first 7code Appmon Chip with , Rei and Hackmon obtain their own when they defeat a cornered . Hackmon comments that Haru has obtained his first 7code Appmon, and Rei says that he "couldn't" allow Haru to reach Leviathan. On November 3, 2016, he sees Eri Karan and on television and declares that things are getting interesting.
===Manga===
On October 1, Rei and collect 's Chip.
==Chips==
File:Hackmon Chip b.png| (former)
File:Mailmon Chip b.png| (former)
File:Protecmon Chip b.png|
File:Raidramon Chip b.png|
File:Roleplaymon Chip b.png| (former)
File:Gomimon Chip b.png| (former)
File:Dezipmon Chip b.png|
File:Revivemon Chip b.png|
File:Hackmon Chip b 2.png|
File:Biomon Chip b.png|
File:Hadesmon Chip b.png|
===7code===
File:Mailmon Code 1 Chip b.png| (former)
File:Roleplaymon Code 2 Chip b.png| (former)
File:Gomimon Code 3 Chip b.png| (former)
==Notes and references==
Category:App Drivers
Category:Characters in Digimon Universe App Monsters
Category:Protagonists
Category:Undubbed