Comparison

AsthmaMD vs Peak Flow Diary | Asthma

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

Head to head
About

AsthmaMD

Track your asthma symptoms, triggers, and medications with this comprehensive management app. Visualize your asthma activity with color graphs and share data with your physician. Contribute to asthma research by participating anonymously.

Highlights
  • Asthma and COPD journal
  • Color graph visualization
  • Patent pending Asthma Action Plan
  • Physician data sharing
  • Medication tracking
  • Trigger tracking
  • Anonymous research participation
Features
Read full description

AsthmaMD is the original asthma research app. Is a FREE (no hidden or upgrade fees) iPhone, iPod, iPad asthma management application. The number-1 asthma and COPD management app, now sold with the AsthmaMD Peak Flow Meter in every Walgreens and CVS in US. AsthmaMD is easy and quick to use. Created by Sam Pejham, MD. Keep a journal of your asthma easily and quickly. Visualize your asthma activity on a color graph. Patent Pending Asthma Action Plan for greatly simplifies using your Action Plan. Share asthma diary and color graph with your physician. Use AsthmaMD to help doctors with asthma research. Manage multiple users with one device. Easily pick from a list of medications. Track how medication is helping you manage asthma. Instantly map your PFM to severity zones. Track asthma triggers such as: Allergies, Pollens, Pollutants, etc. AsthmaMD not only helps you track your asthma but you will also be helping doctors and researchers learn more about asthma, and other asthma sufferers like yourself learn about high asthma locations. You have an option to participate anonymously and securely using systems managed by google to provide researchers with information that has never been available before. Imagine helping a parent find an area to move that has a lower asthma rates, or pick a school in an area with a lower rate of asthma attacks. We are going to change asthma research and you have a chance to be part of it. Support us and asthma research by downloading and using this app and telling other asthma patients about it. We want to hear from you, email us at help@AsthmaMD.org

About

Peak Flow Diary | Asthma

Easily record daily peak flow values and visualize breathing changes with clear graphs. Understand your asthma trends, identify early warning signs, and support your health management. Useful for medical visits and daily care.

Highlights
  • Daily peak flow recording
  • Easy input methods (slider/keyboard)
  • Zone-based graph display
  • Record list with memo management
  • Cloud storage and account support
  • Intuitive and simple operation
Features
Read full description

Understand Your Breathing, Every Day. Peak Flow Diary is an easy-to-use app that helps you record your daily peak flow readings and track changes in your breathing over time. With just a few seconds of recording each day, you can better understand: • Your usual breathing condition • Changes and trends in your breathing • When your condition starts to worsen Color-coded zones make it easy to see your current breathing status at a glance, helping you manage your respiratory health every day. 【Key Features】 ■ Quick and easy daily recording Record your peak flow in seconds using either the slider or keyboard input. Choose the method that works best for you. ■ Color-coded graphs View your peak flow readings in easy-to-read graphs. Color-coded zones help you quickly understand your current condition and identify trends over time. ■ History and notes Review all your previous records in one place. You can also save notes about your symptoms, activities, or daily events. ■ Medical Report (PDF) Automatically generate a PDF medical report from your recorded data. Print it or show it on your smartphone to help explain your condition during medical appointments. ■ Reminder notifications Set reminders so you never forget to record your peak flow. ■ Secure cloud backup Your records are safely stored in the cloud, making it easy to restore your data when changing devices. ■ Simple and intuitive design Designed to be easy to use every day, so you can build a lasting habit. 【Premium】 Unlock additional features to gain deeper insights into your breathing. ■ Breathing Monitor Analyzes your daily peak flow readings and sends push notifications when sudden drops or declining trends are detected. ■ Long-term analysis View your peak flow data over an entire year to identify long-term trends that may not be visible within just 28 days. ■ Comparison graphs Compare your current data with the previous year to better understand seasonal changes and long-term patterns. ■ Extended Medical Reports Generate PDF medical reports covering up to one year of recorded data. ■ Ad-free experience Enjoy the app without advertisements. Keeping a daily record is the first step toward better understanding your breathing. Start tracking your breathing today with Peak Flow Diary. Peak Flow Diary Terms of Service https://susatthi-asthma-diary-prod.web.app/terms-of-service.html?lang=en Peak Flow Diary Premium Terms of Service https://susatthi-asthma-diary-prod.web.app/terms-of-service-premium.html?lang=en

Screenshots

AsthmaMD3 screens
Peak Flow Diary | Asthma4 screens

Verdict

The call

The clearest difference is rating: Peak Flow Diary | Asthma at 4.7 against AsthmaMD's 2.0. Peak Flow Diary | Asthma also leads on review sentiment (74% vs 50%) and update cadence (every 3 weeks vs every 2 months). AsthmaMD's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price, ratings volume and device support 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. Peak Flow Diary | Asthma sells 2 in-app purchases, starting at $3.99 per month. AsthmaMD asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Peak Flow Diary | Asthma holds the better App Store score, 4.7 against 2.0. Both are backed by a comparable volume of ratings — 62 and 35 respectively. Written reviews point the same way: 50% of AsthmaMD's written reviews are positive against 74% of Peak Flow Diary | Asthma's.

UpkeepUpdate frequency

AsthmaMD ships an update every 2 months, Peak Flow Diary | Asthma every 3 weeks. The most recent releases landed on October 12, 2026 and October 18, 2026 respectively.

Scorecard7 real differences · 3 level
AsthmaMD versus Peak Flow Diary | Asthma: the parameters behind the verdict, then further details
ParameterAsthmaMDPeak Flow Diary | Asthma
PriceFreeFree
Rating2.0 (62 ratings)4.7 (35 ratings) — better
Positive reviews50.3% of reviews74.2% of reviews — better
Number of ratings62 — better35
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS7.0 — better15.0
Further details — not scored
Size13 MB57 MB
Age rating12+4+
DeveloperMobile BreezeKeyber Inc.

Customer experience

AsthmaMD

All ratings62 ratings
Positive21.0%
Neutral6.5%
Negative72.6%
Written reviews181 reviews
Positive50.3%
Neutral11.0%
Negative38.7%

Peak Flow Diary | Asthma

All ratings35 ratings
Positive97.1%
Neutral0.0%
Negative2.9%
Written reviews31 reviews
Positive74.2%
Neutral16.1%
Negative9.7%

Bugs and requests

AsthmaMD

Reported bugs

3 issues
  • Unable to create account or log in
  • Incorrect data displayed on charts and graphs
  • Medication reminders not working properly

Requested features

4 requests
  • More customizable medication tracking
  • Ability to track multiple peak flow readings per day
  • Free-form notes section
  • Integration with health apps/services

Peak Flow Diary | Asthma

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

AsthmaMD

No in-app purchases

2 purchases

Peak Flow Diary | Asthma

Subscriptions2
  • Monthly Plan14 Days trial$3.991 Month
  • Annual Plan14 Days trial$24.991 Year

Questions

Is AsthmaMD free?
AsthmaMD is free to download, with no in-app purchases.
Is Peak Flow Diary | Asthma free?
Peak Flow Diary | Asthma is free to download, with in-app purchases available.
Which has better reviews, AsthmaMD or Peak Flow Diary | Asthma?
Peak Flow Diary | Asthma is rated higher. AsthmaMD averages 2.0 out of 5 from 62 ratings, while Peak Flow Diary | Asthma averages 4.7 from 35 ratings.
Do AsthmaMD or Peak Flow Diary | Asthma have ads?
Peak Flow Diary | Asthma shows ads; AsthmaMD does not.
Which is updated more often, AsthmaMD or Peak Flow Diary | Asthma?
AsthmaMD ships an update every 2 months, and Peak Flow Diary | Asthma every 3 weeks. Most recently, AsthmaMD was updated on October 12, 2026 and Peak Flow Diary | Asthma on October 18, 2026.

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