55 reviews
Content rating
Everyone
10K+
Downloads
Content rating
Everyone
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About this app

Sonmol PEF is a companion app for the Sonmol Digital Peak Flow Meter. It is designed to help users record, review, and manage peak expiratory flow data measured by a compatible calibrated peak flow meter.

For people living with asthma or COPD, Sonmol PEF can help track peak flow readings, symptoms, medication records, and trends over time. These records may help users better understand changes in their condition and share relevant information with healthcare professionals.

This app is intended to support disease and condition management together with professional medical care. It does not independently measure peak flow, diagnose asthma or COPD, predict asthma attacks, provide treatment decisions, or replace advice from a qualified healthcare professional.

IMPORTANT:
This application is not a peak flow meter and cannot make peak flow readings by itself. You need to use a calibrated and certified peak flow meter or ask your doctor or another qualified healthcare provider to perform a reading for you.

The information provided in this app is for recording and reference purposes only. It should not be treated as medical advice. You should consult your doctor or another qualified healthcare provider if you have questions about any medical condition, symptoms, diagnosis, or treatment.

Seek immediate medical attention if you believe you may be experiencing a medical emergency or worsening symptoms. Never delay seeking medical advice, disregard medical advice, or discontinue medical treatment because of information from this app.

DISCLAIMER

Jurisdiction statement:
The Sonmol PEF app is intended for use with the Sonmol Digital Peak Flow Meter in regions where the related device and app combination has applicable regulatory clearance, certification, or approval, including:

- China
- United States

In other regions, use may be limited to research, clinical investigation, or clinical trial purposes where permitted by applicable laws and regulations.

The Sonmol PEF app is part of a regulated medical device system where applicable. Regulatory documents can be found here:

http://fe-static.healthcare-inc.com/PEF%20FDA.pdf

http://fe-static.healthcare-inc.com/Sonmol%20PEF%20CE.pdf
Make asthma control easier
Updated on
Sep 28, 2026
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Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
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  • No data collected
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Ratings and reviews

53 reviews
Bob M
March 29, 2025
This app is supposed to be able to sync data with the Sonmol device using Bluetooth, but initially couldn't. During the sync attempts, it requests the device to be on and that "location access"be enabled in Android for this app. However, this app is not listed as one of the choices to enable location access. The developer should change the statement to:"nearby device access" in the app settings and tell users to reboot the phone prior to the sync.
11 people found this review helpful
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Dotty
May 5, 2025
I wanted something that would sync either to my phone or chromebook, but this is not it. it tells me I need to give location permission, but there is no location to give permission for. I feel like I wasted 30 bucks since I got the meter on sale and needed something that would keep track of my FEV1 and PEF, and it would sync to the app for me. my suggestion is to keep looking and don't waste the money. thankfully I know my FEV has to be above a certain number.
4 people found this review helpful
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Brian Shappee
April 27, 2025
I had to read the comments (thanks Bob!) to get the device to successfully sync with my phone. As he stated, the app doesn't have the option to set the location (despite what it says). The only way to resolve the issue is to totally reboot the phone. The development team needs to modify future releases.
5 people found this review helpful
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What’s new

Fixes for known issues.
Content rating
Everyone
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App support

About the developer
xianglei
contact1@nascool.com
渡舟街道太平村7组91号 (徐汇) 长寿区, 重庆市 China 401121