Smart Peak Flow Meter

(26 customer reviews)


You’re about to attack asthma and this is your new secret weapon. Blow and forget style management, let the app do it for you.

  • Same day asthma attack warnings, or several days in advance.
  • Know if your asthma is getting better or worse, and what to do about it.
  • Suitable for adults and children above 5 years old.
  • Medically approved device used at Harvard Medical School.
  • Use on all phones with a headphone jack. If your phone doesn’t have a headphone jack, you can use headphone jack adapter for it.
  • More accurate measuring than normal peak flow meters.
  • Convenient peak flow charts and send to your nurse/doctor by email. Cut down on visits.
  • Free app & free delivery worldwide.100% money back guarantee if you don’t like it.


Get started

A quick video on how to get started with your Smart Peak Flow meter.
Doctor's thoughts
"This is a great alternative to written paper diaries.
You can easily download the app and get accurate measurements.
Also, those who are less tech-savvy get feedback on the accuracy of their measurements."

- Dr. Andras Szantho, Pediatric Pulmonologist

What's in the box?

Smart Peak Flow Meter
Reusable Mouthpiece
Carry Bag
User Manual

26 reviews for Smart Peak Flow Meter

  1. Karen Carmichael

    At first I had trouble with the app giving measurements when I hadn’t blown. (due to certain types of lights) This has now been fixed. Easily fits into my bag, allowing me to take a reading anywhere, anytime. My GP was impressed when I went in for a review and I was able to show her how my peak flow measurements had been since the start of the year by showing her the graph. My only complaint is that the mouthpiece to the meter falls off very easily.

  2. Allison Galt

    This is a brilliant device

  3. Sharon Beaumont

    Brilliant device. Bought it as my last asthma attack came on so quickly it was scary. However, after using this device on a daily basis it gave me an amber warning and advised I took my blue inhaler even though I didn’t have any major symptoms at the time. you can clearly see from the app that my asthma isn’t under control properly so I can now show the readings to my GP and hopefully get sorted.

  4. Ramon Mila Ferrer

    4 stars

  5. Anonymous

    5 stars

  6. Sandra Delachaise (verified owner)

    it some time work I have two incase one brakes

  7. HUDOKLIN IRENA (verified owner)

    Veri conviniant for younger astmatics

  8. Anonymous (verified owner)

    I think every asthmatic should have this. This has breathed new life into my previously sporadic asthma care. Start the app, plug in & blow, result explained & logged in the diary-done! Also, an option to make a note & view the graph. The only nit pick I have, is that the clear mouth piece could do with a slightly tighter fitting.

  9. dan bayley (verified owner)

    Great little gadget, nice app too, but can’t figure out how to get my data out of it.

  10. Zita

    Perfect, easy to use

  11. Shaban Shabanov

    It’s a great way to keep track
    Down side-readings can’t be deleted

  12. Angela P.

    Simple to use and recorded automatically – ideal.

  13. Lee Mackenzie

    Great Device and App

  14. Lesdia


  15. Natalie Barnes

    I have a teenage son who has asthma – albeit only with a cold (virus) which can be quite unpredictable.
    I was looking for an app to document his peak flows and came across your product which is a fabulous innovative idea. I have a typical teenager who thinks normal graphing of peak flows is boring. Consistent peak flow monitoring has therefore lacking. Anything to do with technology and he’s interested.
    He also needs to be more involved in his asthma management. The app and smart peak flow metre have allowed him greater engagement with his chronic condition. I’m a registered nurse and love the use of modern technology and health innovation.

  16. Motoki Tokifuji

    5 for recording my peak flow ellegantly.
    -1 for not working on Pixel3 XL via microphone to usb-c adaptor.

  17. Margaret A. (verified owner)

    Efficient and compact

  18. Martin Goodman (verified owner)

    Needs getting used to as if you are wheezy it sometimes doesn’t register

  19. Grace (verified owner)

    Great device easy to use. Needs a direct source of light above you or it gives some very peculiar readings! The device takes your highest resting not an average and you cant add any readings from a manual PFM. It definitely makes tracking my PF easier and PDF of results can be shared directly to my doctors which is fab!

  20. Susan F. (verified owner)

    An easier way to keep track. Only problems are – need to be in a well lit room at night, think it gave me too high a personal best to start with as I’ve had to reduce it to make it more realistic and I could do with a narrower mouthpiece, the doctor gave me a child’s peak flow meter as my jaw doesn’t open enough. Otherwise very happy – even happier when I get green!!

  21. Sam

    Since most recent app update, it works well. I do get some variability with differing amount of room lighting – however, this is expected. I’m a health care professional that has tried using this device.

  22. Kevin Wilkinson

    Easy to use and seems very accurate.

  23. Lynne Dearlove

    I really like this. Having been surprised that there is not an official NHS asthma app, I came across this device and tracking app. The device is easy to use and less cumbersome than the traditional PF meter. Love the fact that the app works out your red, amber and green zones which has made my asthma plan so much easier to implement. Data is clearly presented with personal best PF automatically added (can be manually changed) based on results. It calculates average PF quarterly and yearly. This makes asthma appointments more efficient. Customer service is excellent. I have been informed that the ability to edit notes is coming in future updates. I have also requested a notes section to add an asthma plan in the sub menu. For me, these features would make it a 5* review. Very promising and will be recommending to others with asthma. My asthma is chronic and difficult to manage but the app gives me reassurance that my PF is okay and if in the amber zone it provides an early warning to users to implement the asthma plan to get back on track. I actually feel that my asthma will be manageable now. Thank you!

  24. richard (verified owner)

    Very handy device and app.Seems to measure a little higher than standard UK peak flow,maybe 10 – 15%.
    Would recommend.

  25. Angela (verified owner)

    Very pleased. Prompt delivery. Well packaged. The app is really clear and checking my peak flow twice a day and having a record on the chart has helped me manage my asthma

  26. Jacques D.

    With Smart Peak Flow I now know how to adjust the prescribed medication and so avoid hospitalization. Before, whenever my asthma became too severe, I would have to go to the hospital for shock treatment – I no longer need to go through all that ! Many thanks go to Smart Peak Flow.

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