180 reviews
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Get once, download on compatible Windows devices too



File weight

18 MB

Last updated



Works with

  • Windows Phone 8.1

App requires

  • bluetooth
  • contacts
  • HID peripheral
  • internet connection
  • location services
  • microphone
  • photos library
  • video and still capture
  • HD720P (720x1280)
  • WVGA (480x800)
  • WXGA (768x1280)
What's this?

Supported languages (9)

Deutsch English español français italiano 日本語 한국어 中文(简体) 中文(繁體)
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Live a healthier, more active life with Fitbit, the top app for tracking all-day activity, workouts and health.

Use this app on its own to track basic activity, or connect with Fitbit’s line of activity trackers and the Aria Smart Scale to get a complete picture of your daily stats—including steps, distance, calories burned, sleep, weight, and more.


TRACK ALL-DAY ACTIVITY: Track your daily steps and distance right on your smartphone with MobileTrack for supported Lumia devices. MobileTrack accurately tracks your basic activity when you carry your phone. For more in-depth, all day tracking of stats like calories burned, active minutes, and sleep, pair the app with a Fitbit tracker.

LOG FOOD: Easily log calories with a credible food database. 

CORTANA BETA (US, UK and AU Only): Using Cortana and a custom Fitbit voice experience, log foods and set alarms with simple natural sentences.  

ACHIEVE YOUR GOALS: Set goals, enter your weight, record your sleep and start a food plan. Then view your progress and track your trends with easy-to-read charts and graphs. 

COMPETE WITH FRIENDS: Enlist friends and family to help you reach your goals by sharing stats, joining fitness challenges, direct-messaging each other, and competing on leaderboards.

SYNC WIRELESSLY: Fitbit trackers continuously sync your stats with your Windows Phone to give you real-time access to your progress without plugging in.

OUTSMART YOUR WEIGHT: Connect wirelessly to the Aria Wi-Fi Smart Scale to seamlessly track your weight, activity and more.

Fitbit requires Windows Phone 8.1. Lumia devices need to be running the Lumia Cyan firmware.
Surge Run

* View maps of your GPS tracked activities.

Friend Finder Improvements

* Add friends from Facebook
* Add friends with email

Reduce App Install Size

* We’ve cut the size of our app almost in half!

Custom Heart Rate Zones

* You can now create custom Heart Rate zones for your Charge HR and Surge.

Exercise Heart Rate

* Heart Rate will now appear for your tracked exercises.


* New tooltips to help get you familiar with the app.

Improved Setup Flows

Miscellaneous Bug Fixes and Improvements
show details


  • by Stephen 23/03/2015
    No call notification, and sluggish. Good wrist band rather let down by the windows app. Android and Apple both have call notification, hated to believe that it cannot be done on Windows Phone. The app struggles to perform on a 520. Waiting a long time for any response for almost all operations. Come on Fitbit & Microsoft, get it sorted! The two states are for the good functionality when something does work.
  • by Andy 21/03/2015
    Very good app, works well and even updated regularly with new features
  • by Lee 20/03/2015
    Been waiting over six weeks and I've still not received my free FitBit Flex! The most annoying thing is that you can't check if it's out of stock. Disappointed.
  • by Deborah 18/03/2015
    Amazing xx
  • by Tom 17/03/2015
    Have to reboot 920 everytime want to sync. IOS works flawlessly. If phone should not be shown as compatible
  • by Martin 16/03/2015
    Great, bring on notification support
  • by craig 14/03/2015
    Great app works well with charge hr and lumia 920 . Would get 5* if caller id worked
  • by Ioannis 12/03/2015
    A good start, but their a lot of room for a lot of improvements. The food log is US based, and linked to franchises. I also found it painfully slow to search find meals. The sleep log is great summery log, but fails to monitor actual sleep cycles and give a detailed break down, presently no option to set call notification on windows phone.... Disappointing further development
  • by Alan 12/03/2015
    Really beautiful design, probably the best visually designed app I have seen. Great functionality as well, works like a dream. Great job developers!
  • by Anand 11/03/2015
    Great. New update includes all day sync and shows the data almost as good as iOS and android. Very happy with the app