Comparison

ePEF vs SereniBrain

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

SereniBrain

This tool uses brain-computer interface technology to guide users through meditation scenarios. It helps individuals learn meditation techniques to achieve relaxation for both body and mind. The app provides assessments, real-time feedback, and detailed analysis reports.

Highlights
  • Meditation State Assessment
  • Real-time Neural Feedback
  • Meditation Analysis Reports
  • Premium Practice Content
Features
Read full description

"SereniBrain" is a tool that integrates brain-computer interface technology with meditation scenarios, aimed at helping more people learn meditation and relax both body and mind. App Features: Meditation State Assessment, Real-time Neural Feedback, Meditation Analysis Reports, Premium Practice Content.

Screenshots

ePEF4 screens
SereniBrain4 screens

Verdict

The call

The clearest difference is review sentiment: SereniBrain at 100% against ePEF's 18%. SereniBrain also leads on rating (4.7 vs 1.8). On price, ratings volume, update cadence and ads 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.

ReceptionRating · Positive reviews · Number of ratings

SereniBrain holds the better App Store score, 4.7 against 1.8. Both are backed by a comparable volume of ratings — 11 and 13 respectively. Written reviews point the same way: 18% of ePEF's written reviews are positive against 100% of SereniBrain's.

UpkeepUpdate frequency

ePEF ships an update every 6 weeks, SereniBrain every 4 weeks. The most recent releases landed on October 4, 2026 and October 6, 2026 respectively.

Scorecard2 real differences · 8 level
ePEF versus SereniBrain: the parameters behind the verdict, then further details
ParameterePEFSereniBrain
PriceFreeFree
Rating1.8 (11 ratings)4.7 (13 ratings) — better
Positive reviews18.2% of reviews100.0% of reviews — better
Number of ratings1113 — better
Update frequencyEvery 6 weeksEvery 4 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.014.0 — better
Further details — not scored
Size103 MB341 MB
Age rating12+12+
Developer上海朔茂网络科技有限公司华南脑控(广东)智能科技有限公司

Customer experience

ePEF

All ratings11 ratings
Positive9.1%
Neutral18.2%
Negative72.7%
Written reviews11 reviews
Positive18.2%
Neutral27.3%
Negative54.5%

SereniBrain

All ratings13 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

ePEF

No in-app purchases

None

SereniBrain

No in-app purchases

Questions

Is ePEF free?
ePEF is free to download, with no in-app purchases.
Is SereniBrain free?
SereniBrain is free to download, with no in-app purchases.
Which has better reviews, ePEF or SereniBrain?
SereniBrain is rated higher. ePEF averages 1.8 out of 5 from 11 ratings, while SereniBrain averages 4.7 from 13 ratings.
Do ePEF or SereniBrain have ads?
Neither ePEF nor SereniBrain shows ads.
Which is updated more often, ePEF or SereniBrain?
ePEF ships an update every 6 weeks, and SereniBrain every 4 weeks. Most recently, ePEF was updated on October 4, 2026 and SereniBrain on October 6, 2026.

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