Comparison

Easy Peak Flow Diary 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

Easy Peak Flow Diary

This free app helps individuals with asthma and other lung diseases track their peak flow and symptoms. It offers simple logging, data visualization, and the ability to export records for physicians. It is not a peak flow meter itself but a diary for recording readings from a separate device.

Highlights
  • Peak flow and symptom tracking
  • Data visualization and charting
  • Optional comments for entries
  • Data backup and export via email
  • No account or internet needed
  • Local data storage
Features
Read full description

This free simple app is a peak flow (PEF) diary, tracker, and charting tool. Easy Peak Flow Diary can help you track peak flow and symptoms. Easy Peak Flow Diary help you do this very simple - nothing fancy just a simple and effective diary. We want to provide the best and simplest tool for logging your PEF. Each entry can be stored with an optional comment. You can backup your data or share them with your physician. The app also provides visualization of your data. This application is useful for individuals with asthma and other lung disease. Features --------------------------- - Easy entry of new measurements - Visualization of your data - Risk chart and statistics - Export your data via e-mail - No account needed - Data stored locally on your unit IMPORTANT: This application *is not* a peak flow meter and thus will not allow *making* a reading of your peak flow. You need to use your own calibrated and certified peak flow meter for that or ask your doctor to make 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 in this app is provided “as is” without any representations or warranties, express, implied or insurance. The app makes no representations or warranties in relation to the medical information. You must not rely on the information from this app as an alternative to medical advice from your doctor or other professional healthcare provider. If you have any specific questions about any medical matter you should consult your doctor or other professional healthcare provider. If you think you may be suffering from any medical condition you should seek immediate. medical attention. You should never delay seeking medical advice, disregard medical advice, or discontinue medical treatment because of information from this app.

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

Easy Peak Flow Diary4 screens
Peak Flow Diary | Asthma4 screens

Verdict

The call

The clearest difference is rating: Peak Flow Diary | Asthma at 4.7 against Easy Peak Flow Diary's 3.7. Peak Flow Diary | Asthma also leads on update cadence (every 3 weeks vs every 13 months). Easy Peak Flow Diary's advantage is in-app purchases (none vs 2) and iOS requirement (11.0 vs 15.0). On price, review sentiment, ratings volume 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. Peak Flow Diary | Asthma sells 2 in-app purchases, starting at $3.99 per month. Easy Peak Flow Diary 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 3.7. Both are backed by a comparable volume of ratings — 18 and 36 respectively. Written reviews complicate that: 79% of Easy Peak Flow Diary's written reviews are positive against 74% of Peak Flow Diary | Asthma's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Easy Peak Flow Diary ships an update every 13 months, Peak Flow Diary | Asthma every 3 weeks. Both last shipped on October 24, 2026.

Scorecard5 real differences · 5 level
Easy Peak Flow Diary versus Peak Flow Diary | Asthma: the parameters behind the verdict, then further details
ParameterEasy Peak Flow DiaryPeak Flow Diary | Asthma
PriceFreeFree
Rating3.7 (18 ratings)4.7 (36 ratings) — better
Positive reviews78.6% of reviews — better74.2% of reviews
Number of ratings1836 — better
Update frequencyEvery 13 monthsEvery 3 weeks — better
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS11.0 — better15.0
Further details — not scored
Size18 MB57 MB
Age rating12+4+
DeveloperSimon lebech CichoszKeyber Inc.

Customer experience

Easy Peak Flow Diary

All ratings16 ratings
Positive62.5%
Neutral6.3%
Negative31.3%
Written reviews14 reviews
Positive78.6%
Neutral0.0%
Negative21.4%

Peak Flow Diary | Asthma

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

In-app purchases

None

Easy Peak Flow Diary

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 Easy Peak Flow Diary free?
Easy Peak Flow Diary 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, Easy Peak Flow Diary or Peak Flow Diary | Asthma?
Peak Flow Diary | Asthma is rated higher. Easy Peak Flow Diary averages 3.7 out of 5 from 18 ratings, while Peak Flow Diary | Asthma averages 4.7 from 36 ratings.
Do Easy Peak Flow Diary or Peak Flow Diary | Asthma have ads?
Both Easy Peak Flow Diary and Peak Flow Diary | Asthma show ads.
Which is updated more often, Easy Peak Flow Diary or Peak Flow Diary | Asthma?
Easy Peak Flow Diary ships an update every 13 months, and Peak Flow Diary | Asthma every 3 weeks. Most recently, Easy Peak Flow Diary was updated on October 24, 2026 and Peak Flow Diary | Asthma on October 24, 2026.

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