- Kansas Grain and Feed
- Kansas Nea
- Kanu App
- Kaomoji Handwriting Keyboard
- Kaomoji Stickers ٩(◕‿◕。)۶
- KapalAku
- Kappa Sigma
- Kappboom - Cool Wallpapers
- Kappboom™ Saucy Stamp Stickers
- Kappija 21
- Kappins
- Kaptioned: Automatic Subtitles
- Kapıyı Tıklat
- Kapıyı Tıklat: Dönüşüm Yönetim
- Kapıyı Tıklat: Site Plus Smart
- Kar Page - car enthusiasts app
- SingNow - Hát kara duet & live
- Kara-高颜值交友约会app
- Karaoke World
- Karavan Studio SA
- Kardeş Kal Türkiye
- Kardiovaskulära Vårmötet
- Karel Mobil
- Kanova
- Karga Karga
- Kargoe
- Karisma
- Karma: Astro Namoro & Paquera
- Karma the Game - Destiny
- Karma Volunteering
- KarmaBook
- Kartina RC
- Karve
- KasaiApp
- Kasar matrimony
- KASKUS Forum: Hobi & Komunitas
- Katahdin Group
- Katcha
- Katch - Events for Everyone
- Katholische Partnersuche
- Kathuwaraya - Sinhala Novels
- Kathy Davis Stickers
- Kattangal News
- Kattima
- Katuju.id
- Katy Community Fellowship