- 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
- KiMM - Deine persönliche Map
- Kimse Var Mı?
- Kin App
- Семья рядом
- Kinder Bam Bam del Norte
- Kinder Green
- Kindergarten-Workshop Forum
- Kinderloop Plus
- Kinderpedia Eltern und Kinder
- KindMeal.my
- KindPlanner Ouder
- 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
- Grace: Faith, Bible & Chat
- Kingdom Life Sav
- KingKing voice roaming service
- KingLive
- KingsChat
- KingsConference
- KingsChat
- KingsConference
- Kingstown College
- Kingsview FWB Church
- Sedispace
- KinkLife: BDSM Dating & Chat
- Kink Stickers (by BDSM People)
- KinkS: Kink, BDSM Chat Fetish
- Kink oo: Fetisch, BDSM Dating
- BDSM, Kink, Fetiche fetish app
- Kintalk – zufälliger Chat
- Kintella
- KINTO Join
- KiOFi
- Kiosk for iPad
- Kiosque CA
- KiPaKi
- Kippo - Come Hang Out