Polar Flow is a sports, fitness, and activity analyzer to be used with Polar GPS sports watches, fitness trackers, and activity trackers.* Follow your training and activity and instantly see your achievements. You can see all of your training and activity data on your phone on the go, and sync them wirelessly to the Polar Flow web service.
*Compatible devices: Balance, Loop, Loop 2, Loop Crystal, A300, A360, A370, M200, M400, M430, M450, M460, M600, V650, and V800. To learn more about compatibility, please visit

"I found Polar Flow to be a terrific complement to the Polar devices I tested, and it is completely in keeping with Polar's detail-oriented, elite-athlete focus on heart rate training and recovery." – Lifewire
"Behind the devices is Polar Flow, a hugely powerful app that holds the key to better running." – Wareable

Key benefits from using Polar Flow together with Polar products:

◆ Get a quick overview of your training on the go.
◆ Analyze every detail of your training session to maximize your performance.
◆ Create structured workouts and training targets, sync them to your device and get guidance during your workout.
◆ See your training data with weekly calendar summaries.
◆ Add and modify sport profiles easily. Choose from over 100 sports.
◆ See a full list of your past training sessions.

◆ Follow your activity 24/7.
◆ Get a complete overview of your day with the combination of activity tracking and continuous heart rate monitoring**.
◆ Find out what you're missing from your daily goal and get guidance how to reach it.
◆ See the active time, burned calories, steps, and distance from steps.
◆ Learn about your sleeping habits with Polar Sleep Plus™: the intelligent sleep measurement automatically detects the timing, amount, and quality of your sleep. You'll also receive feedback on your sleep so that you can make changes towards better sleep***.
◆ Receive inactivity alerts encouraging you to get up and move.
**Continuous heart rate is available for Polar A370, Polar M430
***Sleep Plus is available for Polar A370, Polar M430, Polar M600
Please note that M450 and V650 are cycling computers and do not support activity tracking.

Balance, Loop, Loop 2, Loop Crystal, A300, A360, A370, M200, M400, M430, M450, M460, M600, V650, and V800 all sync with the Polar Flow app using Bluetooth Smart.
Polar Flow app allows you to share some of your wellness data with Apple Health. This includes details of your training, your heart rate, and steps.

DOWNLOAD Polar Flow now and turn your phone into a training and activity analyzer. You can find more info at

Twitter: @polarglobal

Find out more about Polar products at

What's New

Version 3.7.1

Are you ready for a modern version of classic balletic training? LES MILLS BARRE™ sport profile is now available on Polar Flow! It may look beautiful, but don’t underestimate the burn! Also, LES MILLS BODYVIVE™ sport profile changed to LES MILLS TONE™.

Additionally, we’ve smashed a few bugs to improve your experience using the Flow app. Happy training! :)

Ratings and Reviews

4.6 out of 5

3.7K Ratings

3.7K Ratings

Syncing issues

Chess Novice

Please can something be done to help this. My polar flow 2 will go for a couple of days without syncing and then requires a lot of time and effort to get it started. Currently it hasn’t synced for 2 days & despite what I am doing now, I can’t get it to start the process. I’ve had a couple of error messages saying the process cannot be completed. I’ve tried taking it off, touching the connector, restarting the app and the phone and that has NEVER worked. Any other solutions? I see the app was recently updated. My biggest issues have come since then.... Sad because when it’s working correctly I think it’s great

Great app for tracking your fitness


The Polar Flow app gives you a lot of data to track your activities, sleep, heart rate etc (depending on device). It's nicely designed and easy to use. You can set sports profiles to configure reporting and track different types of activities. Synching works well - you should turn on Bluetooth on your phone (or connect to a PC/Mac) - don't initiate a connection from your phone's Bluetooth menu - and initiate the synch from your device.

Simple & functional


It does what it needs to do which is to document my ride and then port the data to Strava and Training Peaks. It has never failed so 5/5. It allows you to change your head unit screens which is handy. It could be improved, more analytics.


Polar Electro Oy
140.1 MB
Health & Fitness
Requires iOS 10.0 or later. Compatible with iPhone, iPad and iPod touch.
English, Czech, Danish, Dutch, Finnish, French, German, Indonesian, Italian, Japanese, Korean, Norwegian Bokmål, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Turkish
Age Rating
Rated 4+
This app may use your location even when it isn't open, which can decrease battery life.
© Polar Electro Oy


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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