ePEF vs FlashDetect Nano
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ePEF
This app helps manage asthma and COPD symptoms by tracking medication and monitoring acute attacks. It requires a separate digital peak flow meter for readings and provides insights for remote disease management.
- Symptom management for Asthma and COPD
- Track medication intake
- Monitor acute asthma attacks
- Evaluate disease progression
- Remote disease management
- Requires digital peak flow meter
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When living with Asthma, the PEF app can help you manage the symptoms that affect you daily. Studies show that people with chronic diseases can positively affect their lives by using PEF to monitor the acute attack, track of the medications, and more-giving a sense of control over the user’s symptoms and conditions. This App is exclusively designed for Digital Peak Flow Meter, that the device has been recognized as a best and cost-effective Asthma&COPD monitor and a better diagnosis device for Asthma and COPD suffers’ home healthcare. The repeatability also saves the cost of using a manual peak flow meter.It predicts the Asthma acute attack, tracks your medicines, helps to evaluate the disease, makes the whole management process easy, and makes your remote disease management come true. IMPORTANT: This application *is not* a Peak Flow Meter and thus will not allow *making* reading of your peak flow. You need to use your own calibrated and certified Peak Flow Meter or ask your doctor to do a reading for you. This app contains information about medical conditions and treatments. The information is not advice and should not be treated as such. The medical information on this app is provided “as is” without any representations or warranties about the medical information. You must not rely on the information from this app as an alternative to medical devices for your doctor or other professional healthcare providers. You should consult your doctor or other professional healthcare providers if you have specific questions about any medical matter. You should seek immediate medical attention if you think you may be suffering from any medical condition. You should never delay seeking medical advice, disregard medical advice or discontinue medical treatment because of information from this app. Medical Disclaimer This app is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions regarding a medical condition. DISCLAIMER Jurisdiction statement: the PEF app is part of a medical device that has been CE-certified and FDA-approved and shall only be used in the following regions: - China - United States In all other regions, usage is only allowed in research, clinical investigation, or clinical trials. The PEF app is part of a CE-certified medical device that has been externally audited. Both safety and accuracy have been certified. Both certificates can be found here: http://fe-static.healthcare-inc.com/PEF%20FDA.pdf http://fe-static.healthcare-inc.com/Sonmol%20PEF%20CE.pdf This Asthma Control Test (ACT) is based on internationally recognized standards provided by: 1. Nathan RA, Sorkness CA, Kosinski M, et al. Development of the Asthma Control Test: A survey for assessing asthma control. J Allergy Clin Immunol. 2004;113(1):59-65. https://doi.org/10.1016/j.jaci.2003.09.008 2. Global Initiative for Asthma (GINA). Global Strategy for Asthma Management and Prevention, 2024 Update. https://ginasthma.org The ACT scoring in this app is provided for educational and self-monitoring purposes only. It is not intended to replace professional medical diagnosis or treatment.
FlashDetect Nano
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App Description: Flash Nano main functions: 【 Instrument 】 On the device page, you can view the FlashDetect Nano smart device that has been added by users, display the working status of the device, filter, view, and delete device records, collect data, and view record details. You can also manage login accounts, including changing passwords, adding or deleting member accounts, and setting permissions for member accounts. 【 mine 】 On My page, you can view the privacy policy, user agreement, usage help, and language Settings (currently support simplified Chinese and English). Jurisdiction: The App and associated medical hardware are available in any region, country or jurisdiction where you download, install, access or use the App. Applicable Law: You agree to comply with all relevant laws, regulations and terms that apply in your region, country or jurisdiction. Dispute Resolution: Any dispute related to this Application shall be resolved in [the court/arbitration institution where the applicable law is located] and shall be governed by [Applicable law]. Disclaimer: This application is for reference and personal use only, and the Developer is not responsible for any direct, indirect, incidental, special or indirect loss or damage arising from your use of this Application. To the fullest extent permitted by applicable law, the Developer shall not be liable for any loss or damage arising from your use of the Application. Users seek the advice of their doctors before making any medical decisions outside of the app. Amendments to these Terms: The Developer reserves the right to modify, update or change this Jurisdiction Statement at any time. You should periodically review this statement for any updates or changes. By downloading, installing, accessing or using the App, you agree to be bound by this Jurisdiction Statement. If you do not agree to these terms, please stop using the Application immediately.
Screenshots
Verdict
The clearest difference is iOS requirement: FlashDetect Nano at 11.0 against ePEF's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
ePEF ships an update every 6 weeks, FlashDetect Nano monthly. The most recent releases landed on September 17, 2026 and September 27, 2026 respectively.
| Parameter | ePEF | FlashDetect Nano |
|---|---|---|
| Price | Free | Free |
| Rating | 1.8 (11 ratings) — better | — |
| Positive reviews | 18.2% of reviews | — |
| Number of ratings | 11 — better | — |
| Update frequency | Every 6 weeks | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 103 MB | 37 MB |
| Age rating | 12+ | 12+ |
| Developer | 上海朔茂网络科技有限公司 | 北京卡尤迪医学检验所有限公司 |
In-app purchases
ePEF
No in-app purchases
FlashDetect Nano
No in-app purchases
Questions
Is ePEF free?
Is FlashDetect Nano free?
Do ePEF or FlashDetect Nano have ads?
Which is updated more often, ePEF or FlashDetect Nano?
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