- KiKo
- KIKO
- Kiko Sticker for Messenger
- Kikori App
- KIKS chat
- Kilian App
- Kilig - Dating App
- Killer Clown Alarm - Scare Away Clowns
- Vurbil
- WeAreX: Open-Minded Dating
- KiManga : Best of animes
- KiMM - Your Personal Map
- Kimse Var Mı?
- Kin App
- Семья рядом
- Kinder Bam Bam del Norte
- Kinder Green
- Kindergarten-Workshop Forum
- Kinderloop Plus
- Kinderpedia Parents & Children
- Kindli
- Kindly – volunteer today
- KindMeal.my
- KindPlanner Ouder
- Kinlia
- Kindred
- King & Rıfkı
- Frost & Flame: King of Avalon
- King of Thrones:Game of Empire
- King Rabbit - Puzzle
- King Scoreboard
- Kingdom Conquerors Ministries
- Kingdom Island - Online Virtual World
- Kingdom Life - Simpsonville
- Kingdom Life App
- Kingdom Life Sav
- KingKing voice roaming service
- KingLive
- KingsChat
- KingsConference
- KingsChat
- KingsConference
- Kingstown College
- Kingsview FWB Church
- Sedispace
- BDSM Dating & Hookup: KinkLife
- Kink Stickers (by BDSM People)
- KinkS: KinK, BDSM & Fet Dating
- Kinkoo: Kinky, Fet BDSM Dating
- BDSM Fetish Dating app - Kink
- Кинолифт
- Kintalk - video, random chat
- Kintella
- Kinzoo: Fun All-Ages Messenger
- KiOFi
- Kiosk for iPad
- Kiosque CA
- KiPaKi
- Kippo - Come Hang Out