Kinetic: Private Fitness Log
Auto-logs walks, gym & sleep
Free · Designed for iPhone. Not verified for macOS.
The best activity tracker. And the most private.
Kinetic logs your day on its own: steps, places, walks, drives, cycling, workouts and sleep. Everything stays on your phone. There's no sign-up, no ads, no analytics and no spying. Kinetic has no servers, so we never see your data.
NOTHING TO START OR STOP
Allow Motion, Location and Apple Health access once. Then just live your day. Kinetic notices where you go and how you get there, and builds your day in the background.
YOUR DAY AS A JOURNAL
Summary bubbles show your day at a glance: sleep, steps, workouts and calories. The timeline underneath has every walk, drive and stay, with times and durations.
TAG IT ONCE. IT LOGS ITSELF.
Name the places in your day, like Home, Coffee or Gym. Tag your gym as "Gym" and every visit becomes a workout, with calories and heart rate. Place names come from Apple Maps.
WORKS WITH APPLE HEALTH
Kinetic integrates with Apple Health (HealthKit). With your permission, it reads:
- Workouts and workout routes
- Steps, and walking and running, cycling and swimming distance
- Active energy
- Heart rate and heart rate variability
- Blood oxygen
- Sleep
- Weight, age and biological sex, to estimate calories
Heart rate variability feeds your readiness score. Access is read-only: Kinetic never writes to Health. Health data stays on your iPhone and is left out of backups.
APPLE WATCH, WIDGET AND LIVE ACTIVITY
- The Apple Watch app measures your heart rate continuously while you exercise. It runs a workout session to do it, then throws the session away. It never saves a workout to Health.
- A Home Screen widget shows your day at a glance.
- A Live Activity shows a session in progress on your Lock Screen.
PRIVATE BY DESIGN
- No account. Open Kinetic and it starts logging.
- No ads and no analytics inside the app.
- Saved on your iPhone, backed up to your own iCloud Drive. You can see the backup in the Files app.
- Only Apple Maps receives your location, to show maps and place names.
- Delete everything at any time, right from Kinetic's Settings.
We can't sell what we never see.
EASY ON YOUR BATTERY
Kinetic uses GPS while you move. Background location pauses once your iPhone reports you've settled, and turns off in Low Power Mode.
FREE
Kinetic is free. No subscription, no in-app purchases.
Kinetic is a general activity and wellness tracker, not a medical device. Its figures, including steps, calories and readiness, are estimates. For anything about your health, talk to a doctor.
Requires an iPhone with iOS 18 or later. The Apple Watch app is optional.
Questions? Email hello@kinetic.site or visit kinetic.site/support.
Privacy policy: kinetic.site/privacy
Terms of service: kinetic.site/terms
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Updated support email to hello@kinetic.site.
The developer, Matthew Harrison, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Matthew Harrison
- Size
- 18.9 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later. - Apple Watch
Requires watchOS 11.0 or later.
- iPhone
- Location
- This app may use your location even when it isn’t open, which can decrease device battery life.
- Languages
- English
- Age Rating
13+
- 13+
- Contains
Health or Wellness Topics
- Copyright
- © 2026 Matthew Harrison