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By Fitbit, Inc.

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Live a healthier, more active life with Fitbit, the world’s leading app for tracking all-day activity, workouts, sleep and more. Use the app on its own to track basic activity and runs on your phone, or connect with one of Fitbit’s many activity trackers and the Aria Wi-Fi Smart Scale to get a complete picture of your health—including steps, distance, calories burned, sleep, weight, and more.

TRACK ACTIVITY: Accurately record your steps and distance with MobileTrack when you carry your phone. For all-day tracking of stats like calories burned, active minutes, and sleep, pair the app with a Fitbit tracker.

RUN SMARTER: Enhance runs, walks and hikes by using MobileRun to track your pace, time and distance. You can also control your music, get voice cues and use your phone’s GPS to map your routes. (Continued use of GPS running in the background can dramatically decrease battery life.)

RECORD WORKOUTS: Use your Fitbit tracker to track your exercise, then check the app to see your stats, their impact on your day, and how your performance is improving.

MONITOR HEART RATE: Use a Fitbit tracker with PurePulse™ to analyze heart rate graphs in the app. Identify trends, manage stress and see the results of your workouts. Review resting heart rate trends to see when your fitness is improving.

LOG FOOD FASTER: Easily log calories with our barcode scanner, calorie estimator, and expanded food database of more than 350,000 foods. See your meal history at a glance, and get nutritional insights.

MEASURE HYDRATION: Quickly log your water intake to make sure you’re properly hydrated during workouts and throughout the day.

SET & MANAGE GOALS: Create weight, nutrition and exercise goals, and start a food plan to stay on track. Then get a visual picture of your progress with colorful, easy-to-read charts and graphs.

SEE HOW YOU SLEEP: Set sleep goals in the app, and use a Fitbit tracker to monitor how much time you spent awake, restless or peacefully sleeping.

SHARE & COMPETE: Connect with friends and family by sharing stats, sending direct-messages, and competing on the leaderboard or in Fitbit Challenges.

STAY MOTIVATED: Get a nudge in the right direction with notifications that pop up when you’re close to reaching a goal or have already met one.

SYNC WIRELESSLY: Fitbit trackers sync your stats to computers and 200+ leading devices so you can continuously track your progress without needing to plug in.

MANAGE WEIGHT: Connect wirelessly to the Aria Wi-Fi Smart Scale to seamlessly track your weight, BMI, lean mass and body fat percentages, and to see your weight trends over time.

Learn more about Fitbit products and services at

What's New in Version 2.36

Bug fixes and performance improvements

iPhone Screenshots

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Customer Reviews

Received Fitbit Blaze As Birthday Gift

Awesome gift, from the moment I opened the box, it looked well thought out and packaged. Felt like I was buying an iPhone accessory. The app is top notch easy to use and has many options for the time clock face. You can input food, water intake, and it does the rest! Monitors my heart rate, steps, calories, and much more. Also provides special monitoring of exercise events for low and high moments in workout. The device even has breathing exercise for calming moments, as well as mini workouts it offers up to increase opportunities when you have 5-10 minutes to fit in a workout. The in depth sleep monitoring reports really provide a real good break down of my sleep periods. It has controls on the device itself to control your music play while listening! It's well worth the price. Popping out the module for charging is easy and gets you back up and running for 5 days after a 2 hour charge. Love the SMS & inbound calling notifications I get on my device screen. Easy to use and well made, I even enjoy being able to change the clock screen from a workout stat view to a more elegant nautical or traditional clock face when going out to dine or dressing up. I give it 5 stars *****.

Loran's Review

My loving wife bought me a Blaze around Father's Day. She already has one in a different style. I was hoping she would help me as being a mature 68 I don't learn technology very fast. But she refused and said it would be good for me to learn to operate it myself. Well, it took about 10 minutes to download the Fitbit application to iPhone. Then it easily synchronized the app with the phone. I cheated and watched a 5 minute U tube instead of reading the easy manual and within another 10 minutes had the watch up and running with the watch face of my choice and found it to be intuitive for setting goals etc. I like it as very to see heart beats, steps walked, time in and what kind of sleep etc. It does remind of motivate to try to improve my health and remain active track weight and calories and can even control iPhone music. Today It even went thru a torture test this morning when the dog and I took a shower which is not recommended or wise as it can get wet but is not water proof but it got really wet and full of soap and it kept on ticking. If all else fails it is a handy watch that will give the appearance you are living in the 21st century. From reviews it is less expensive than some alternative watches and probably best for the folks that like to workout.

Alta HR gives better sleep info than Jawbone

So glad I finally threw my UP Move in the trash and got the new Alta HR from FitBit. The sleep app for FitBit, especially with the added HR info, is so much better! I LOVE IT!

I have an Apple Watch (see below), so my main interest was in Sleep Tracking. (Apple watch can't do that and get recharged at the same time.) I've been a Jawbone UP user for years. When my last UP band choked under warranty last year, I tried the FitBit Blaze, but quickly decided to get an Apple Watch instead. After all, Jawbone kindle gave me a fancy new UP Move to replace my UP band. (Should have waited for the backordered UP band - hated the UP Move the entire time I had it.) Well, two days ago that useless UP Move needed a new battery - AGAIN, so I threw it in the trash with the replacement band I had to buy for it when the old one crapped out.

I decided to switch from Jawbone to Fitbit and I'm so glad I finally made the move. Since sleep tracking is my main goal, the Alta HR does a better job by incorporating heart rate data, and the Fitbit App, which is working flawlessly for me, provides your sleep data in a number of different ways that, so far, I like much more than the UP app.

View in iTunes
  • Free
  • Category: Health & Fitness
  • Updated:
  • Version: 2.36
  • Size: 133 MB
  • Languages: English, French, German, Italian, Japanese, Korean, Simplified Chinese, Spanish, Traditional Chinese
  • Seller:

Compatibility: Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.

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