- Keen2: Track Trichotillomania
- KeenNote
- Keep Me Safe
- Keep your fluids up
- KeepBP - Blood Pressure App
- Keeskee
- Kegel Exercises
- Kegel Nation
- Kegel Study
- Kehamilan App
- Keito eHealth
- KelDoc
- keleya: Pregnancy App & Yoga
- Kelvi Clinician
- Kelvi Patient
- Kemibasen
- Ken Tan Obstetrics
- KENSHIN Plus
- Kent Homeopathic Repertory
- KER ClockIt RACE
- KER ClockIt Sport
- Keraring Assistant
- BeB App
- Livofy: Weight Loss & Diet App
- Keto Logger
- Keto-Green
- Ketodieta
- Ketogenic Diet Therapy
- Ketogenic therapy for Cancer
- Ketonix
- KetonixGO
- Ketonox
- KevinRoot Medical
- Key Points Pharmacy
- KeyHealth
- KeyPoints in Respiratory
- Keyword Understanding
- Keywords Understanding Lite