- Kneadz Work
- Übungen für das Knie
- KneeFit
- KneeGlider
- Beckenbodenübungen
- Kniekontrolle
- Knietraining nach Operation
- KnifeSavers
- Knight Fitness 騎士健身
- KnitWarm
- KNLTB Match App
- KNMSP
- Knockout Gym
- Knockout Kickboxing & Fitness
- KNOGG
- Knomee
- Knooppunt TrainingsPlanner
- Knot Springs
- Know My Beat
- Know My Heart (AF Edition)
- Know Your Mothers
- Know&Share
- Know&Share
- Know-how GET IN SHAPE
- KnowDrugs Drogenwissen
- Knows
- KnowVTE Official
- Creda Health
- Knox County YMCA
- Knoxville Academy of Martial
- KnoxxiHealth
- Knuckleheads Boxing
- KNWU Check-In
- Knörnschild Fitness
- KO17 Lacrosse
- KOA Center
- Koala - by FMP
- Koala Ambulatorio
- Koala Nap:Stop Apnea & Snoring
- Koboko Fitness
- Koboskini
- Kochbuch - Rezepte speichern
- Kockum Fritid
- Kocoon System
- Kocum Benim - Gym Tracker
- KOC안경사협동조합
- Kodiak Taekwondo
- KOEN
- Kohl's Fitness
- Koi Tabata Timer - HIIT Training & Tabata Timer
- Koinor Control
- KOKO NAILS PTY LTD
- KOKU Lite (Keep On Keep Up)
- Kolaines Beauty Lounge
- Kolayvet
- KolemPlzne
- Kolmachine
- Kolmovo Fitness
- KOLO
- KOLO+智慧前台
- KoloFit
- Kom i fokus
- Komando Fit & Gym
- KOMBO App