Comparison

ePEF vs BladderUSG Pro

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Symptom management for Asthma and COPD
  • Track medication intake
  • Monitor acute asthma attacks
  • Evaluate disease progression
  • Remote disease management
  • Requires digital peak flow meter
Features
Read full description

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.

About

BladderUSG Pro

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*Medical Disclaimer This App’s imaging features are available and intended for diagnostic or procedure guidance purposes only when certified medical professionals use Bladderscanner transducers (Medical Device). This App only displays or manages ultrasound imaging or Doppler signals, and Image interpreting and specific diagnosis shall be left to qualified medical professionals. The imaging or Doppler signals displayed are only for certified medical professionals, not meant to provide medical advice or dia。Our bladder analyzer has obtained medical license in China and FDA certification in the United States.Registration Certificate No.: Yue Xi Zhu Zhun 20160261592 US FDA Certificate K172750 Jurisdiction Statement: This application is intended for use in China and the United States. We control and operate this APP in the China ("China") and the United States; Unless otherwise specified, the materials displayed on this app are only for the purpose of promoting products and services within China and the United States. We have not made any statements regarding the applicability or suitability of any materials on this APP in any other region. If you choose to access this app from another location, it is your responsibility to comply with applicable local laws.

Screenshots

ePEF4 screens
BladderUSG Pro1 screens

Verdict

The call

The clearest difference is iOS requirement: BladderUSG Pro at 12.0 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

ePEF ships an update every 6 weeks, BladderUSG Pro monthly. The most recent releases landed on September 17, 2026 and September 9, 2026 respectively.

Scorecard1 real difference · 9 level
ePEF versus BladderUSG Pro: the parameters behind the verdict, then further details
ParameterePEFBladderUSG Pro
PriceFreeFree
Rating1.8 (11 ratings) — better
Positive reviews18.2% of reviews
Number of ratings11 — better
Update frequencyEvery 6 weeksMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size103 MB47 MB
Age rating12+4+
Developer上海朔茂网络科技有限公司SonoStarMed

In-app purchases

None

ePEF

No in-app purchases

None

BladderUSG Pro

No in-app purchases

Questions

Is ePEF free?
ePEF is free to download, with no in-app purchases.
Is BladderUSG Pro free?
BladderUSG Pro is free to download, with no in-app purchases.
Do ePEF or BladderUSG Pro have ads?
Neither ePEF nor BladderUSG Pro shows ads.
Which is updated more often, ePEF or BladderUSG Pro?
ePEF ships an update every 6 weeks, and BladderUSG Pro monthly. Most recently, ePEF was updated on September 17, 2026 and BladderUSG Pro on September 9, 2026.

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