- Konectible
- Konempleo
- Konfi
- Kongosa
- Konguru
- Koninklijke HC en VV
- Konkoit Wildlife
- KONNECT by KIRINUS
- Konnect - Make Local Friends
- KonnectWomen
- Konquistare
- Konsensus: Track Movies, Shows
- Konstella
- Kontaktr
- Kontentino - Social Media tool
- Konut Yönetim
- Koo: Know What's Happening!
- Kooky: For K-Pop Fans
- Koolpeace: Learn Korean
- KOOLTONG
- Kooup - Date Your Soulmate
- Kop.G.A.
- 외국인과의 데이트
- Korean Indonesian Learning2
- Korian Family
- KORK
- Korponnect
- Kosher App - The Mitzvah tools
- Kosmos Hi Lo
- Koszaliński Rower Miejski
- Kotha
- Kotoniwa コトニワ - 好きな言葉が見つかるSNS
- Kotozna Chat | multi-lingual
- Kouhigh口嗨网-北美潮玩零食社交电商
- Kovii - calls and video calls
- KOWORK
- Koye
- Koç.Hub