The best Health & Fitness app on Mobile Premier Awards 2011 according to the jury of industry experts and as seen on Dr. OZ show!

See every heart beat on the monitor, just like in ER rooms. Measure your heart rate instantly!

Instant Heart Rate uses your phone’s camera to detect the pulse from your fingertip – leveraging similar technique as used in pulse oximeters.

Place the tip of your index finger on the phone’s camera, and in a couple of seconds your pulse will be shown. Instant Heart Rate will beep with your pulse. A real-time chart will show you every heart beat.

Join over 25 million users who are already using it.

  • Heart pulse measurement
  • Real-time PPG graph
  • Continuous or Auto-Stop mode
  • Heart Rate Zones
  • Data storage and tags
  • Export data for registered users
  • Sharing to Twitter and Facebook

NOTE: For iOS, works best on iPhone  5/4/4S because it has a camera flash. On iPhone 3GS and iPod touch it has to be used in good lighting.

NOTE: Make sure that your fingertip completely covers the camera lens. Press gently, since pressing too hard reduces blood flow in your finger and it’s harder to get a result. Make sure that your fingers are not cold. This app is for recreational and fitness use only!

Free Version Available

Instant Heart Rate is also available for free for both iOS and Android.

Instant Heart Rate FAQ

Instant Heart Rate doesn’t want to read my pulse. What’s the deal?

The following tips correct most pulse detection problems:

  • Hold very still.
  • Cover the entire camera lens with the soft part of your fingertip. Don’t worry about covering the LED flash.
  • Press very, very gently on the lens. Pressing too hard cuts off circulation.
  • Make sure your fingers are warm.

My phone can take my pulse?!?

I know, right? It’s actually pretty straightforward: your finger changes color slightly as the capillaries inside expand and contract with each heartbeat. Under bright enough light, these color changes are easy to detect with the right algorithm. Instant Heart Rate uses the camera feature (and your LED flash, if you have one) to average out your heartbeats per minute.

Can I export my data to my email, and can Instant Heart Rate sync up with other devices and services that measure exercise, etc?

Yes, you can export your data! Go to this page and sign in with your Azumio account, where you will have the option to download your data in CSV format.

As for syncing with devices, Azumio is working hard to get an API up and running as soon as we can! That way, you’ll be able to see more of your data in one place.

What is the difference between the Free and Pro versions of Instant Heart Rate?

iPhone platforms: Pro allows you to store more than 5 measurements in your Timeline, contains no advertisements, and enables you to turn your phone on its side to see a progress chart of your measurements.

Android platforms: Pro does not contain advertisements, and allows you to store more than 5 measurements in your Timeline.

  • Bigge

    The app store is a German version called
    where can I set it?

    Greeting Bigge

  • Dave

    Very unreliable. And doesn’t seem very accurate.

  • Nobbs

    Wo ist die angebotene deutsche Version ???????

  • Jarr

    I have used it and it is reliable. it is usually about 3 -5 beats off from the pulse ox our clinic uses. being able to print out results from email would be great so that I could give it to my cardiologist.

  • Rafael1


  • Eoin O’Beara

    Pity it doesn’t run on Blackberry

  • Michele

    Dont think its realiable one minute my bpm is 34 the next it 84 a fluctuatimg

    • azumio

      The reading can fluctuate initially if the signal is not clear and the algorithm is still honing in on your actual pulse data. If this persists, try warming up your hands, pressing more gently on the camera, or moving your finger position.

  • Tabs

    For those who say it is not reliable I would encourage to do it with you hand lying on a table. It worked perfectly for me. But If I live my hand in the air then the signal is really noisy. It certainly comes from the fact that blood pressure changes a lot when the hand is raised up.

    • azumio

      Awesome Tabs, thanks for the tip! I find this to be especially useful if my hand is shaking.

  • John

    I tried to download my data using the “Go to this page” link above, but there is no data there, just a heading line. Any suggestions?

    • azumio

      Did you log in using the same account you’re using on the phone? Did you make sure that your phone had internet access when you ran the app, so it could upload to the server?

  • Alex

    Sorry guys, the concept is nice but the App actually managed to read my pulse 2 times out of 20+. Yep, and I had no bumper in the camera’s way, had my finger pressed hard and fully covering the lens, tried different fingers and ways to hold my phone, kept my hand flat and motionless – still gave me no pulse 95% of the time. Frustrating.

    • Azumio

      Pressing your finger hard is actually one of the biggest reasons people don’t get a pulse reading. The phone can’t see the blood in your finger tip if you push it all out of the way!

  • Pat

    I was astounded how well this works. Gets my pulse perfect every time. Perhaps my phone camera is better than others but mine is flawless. love it. I’m using the HTC Thunderbolt.

  • Joveh

    Seems accurate, double checked with another heart rate app and got about the same result.

  • Jim

    Tabs: The tip about lying your hand on the table seems to work very well, thanks

  • Guest

    is there something in the settings where I can use a strap around my chest instead of the finger on the light?

  • Johnny

    is there something in the settings where I can use the strap around my chest to monitor the heart rate rather then using my finger on the light?

    • Azumio

      We do not currently support that functionality, but plenty of other apps do!

  • Drmzhr

    Very good -thank you

  • patrick

    This works really well on the iphone 4s, not sure how it works on other phones.

  • mawal

    be careful company sends unsolicitrd spam mails to customers, azumio does not honor your privacy or unsubscribe request. even the paid instant heart rate app is full of of advertising.

    very poor business standards!

  • Jim

    How does this app measure blood pressure?

    • Azumio

      This app does not measure blood pressure.

      • Jim

        Many thanks,

        What would be the best app for measuring blood pressure?


  • mmjaxfl

    are my readings from the free version lost when I upgrade to Pro?

    • Azumio

      Not if you create an account!

  • Betty Jo

    Within the app’s help section it talks about a “Heart Rate Recovery Measurement” but I can’t find any function like that in the app. Please explain. Thks!

    • Azumio

      This is not a special function, it is talking about a type of measurement you can take. Basically: go work out really hard, then use the app on continuous mode, and see how your heart rate falls over time during the recovery period.

  • mich

    I just paid for the full version but I don’t get the ECG-like graph – just a wait period, a reading, and done. What am I doing wrong?

    • Azumio

      That sounds odd, will you send a screenshot? The ECG-like graph is the line in the middle of the center circle, in case there is any confusion.

  • Naomi

    How about an app for the iPad?

  • Linda J, Concord,CA

    This app works WONDERFULLY on my HTC Sprint Moble phone.
    But, will NOT open on my Driod Razr Maxx.. IT downloads but, will not open…
    only showsa blank (black) screen and nothing more…. PLEASE FIX IT SOON… Thank you…

    • Linda J, Concord,CA

      PLEASE feel free to contact me via email for any beta testing that maybe needed in
      order to fix this. FYI… the Droid Razr Maxx is my personal phone and the HTV is mu business phone. Thank you ..

  • Santosh

    I tested the results on many occasions using a polar hrm. The accuracy is unbelievable. This is one of the most useful apps I have ever purchased. You just need to get the right placement of your finger on the lens and you will get extremely accurate results.

  • Gary

    When I download the stored information I can’t open them using excel, why not?

  • Terry

    Why does it need access to my phone number and serial number in the permissions? What are you doing with that informaion?

  • Pat

    The led flash light does not work a all!! Why?? I want a anwser!!! why??

  • pat

    The light does not work!!! why why why ????

  • Michael Sarfatti

    Just installed on a Motorola Atrix2. Multiple tests show my heart rate above 160, which is obviously very wrong. I tried both index finger gently over the lens (light on). Am I doing something wrong?

  • Michael Sarfatti

    App works fine on my Acer tablet. HR around 60. Definitely not working properly on the Atrix 2