Peak Flow Diary | Asthma

Peak Flow Diary | Asthma

Understand Your Breathing

35 ratings
29 reviews
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • September 18, 2023
  • September 8, 2026

Features

Peak Flow Diary | Asthma screenshot #1 for iPhone
Peak Flow Diary | Asthma screenshot #2 for iPhone
Peak Flow Diary | Asthma screenshot #3 for iPhone
Peak Flow Diary | Asthma screenshot #4 for iPhone
Peak Flow Diary | Asthma screenshot #5 for iPhone
Peak Flow Diary | Asthma screenshot #6 for iPhone
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About

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.

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
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+1

What's New in Peak Flow Diary | Asthma

6.1.0

September 8, 2026

- Updated the libraries used by the app - Fixed minor bugs

Subscription plans

Annual Plan

Access all Premium features for one year.

$24.991 Year
14 Days trial
How to cancel Peak Flow Diary | Asthma subscription ⁉️

User reviews

使いやすい

難しい操作がなく使いやすい。
ひとつだけ不便なことは日付ではなく曜日表示なのでピークフローが下がっている日をわざわざ曜日と手持ちのカレンダーを照らし合わせないといけない事ですかね

スマホで安心がたまる🩷

スマホは中毒のように朝起きた時から夜寝る時までさわる。起きた時と寝る前にピークフローメーターを3回、その場のスマホいじりの延長で安心が勝手にたまって行く。これはポイントが貯まる感覚で続けられる!まさか自分の喘息(呼吸苦)をこんなに可視化できると思わなかった!
良い時代になりました!
アプリ開発者様、ありがとうございます!!!

Response from developer

コメントありがとうございます!開発の励みになります!

素晴らしい

今まで手書きしてました。
ありがとございました。

Response from developer

コメントありがとうございます!開発の励みになります!

Good to great

What would make this app better is to be able to edit the areas of what’s good and what’s are of concern to our own asthma plan

Response from developer

We appreciate your suggestion regarding the customization of the asthma plan areas. We understand how important it is to align the app with your personal medical plan and will look into this feature.

Cannot adjust the traffic light system

Following being poorly and having peak flow done, I was told that if my peak flow is at 200 as this is below 50% of my normal peak flow - however the app states 100 is the action required - would be helpful if people could adjust the warning states based on the recommendation from their healthcare professional advice. Sadly based on this I have deleted the app as it is not useful for me.
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Response from developer

You can manually adjust your personal best peak flow value in the settings. We would love for you to give it another try!

Developer apps

FAQ

How does Peak Flow Diary help manage asthma?

Peak Flow Diary allows you to record daily peak flow values and visualize trends through easy-to-read graphs. This helps you understand your condition, identify early signs of worsening symptoms, and have better data to discuss with your doctor.

What are the input methods for peak flow in Peak Flow Diary?

Peak Flow Diary offers two convenient input methods for recording your peak flow values: a slider for quick adjustments or a keyboard for precise entry.

Can I see my past peak flow data in Peak Flow Diary?

Yes, Peak Flow Diary provides a record list where you can review all your past peak flow entries. You can also add notes to each record for better reflection and context.

Is my data safe with Peak Flow Diary?

Peak Flow Diary utilizes cloud storage and account support to securely store your data. This ensures your information is safe and can be restored if you change devices or lose your current one.

What devices does Peak Flow Diary support?

Peak Flow Diary is available for iPhone, iPad, and iPod devices, allowing for consistent tracking across your Apple ecosystem.

How often is Peak Flow Diary updated?

The app was last updated on March 20, 2026, indicating ongoing development and support for the application. The latest version is 4.14.0.

What is the age rating for Peak Flow Diary?

Peak Flow Diary has an age rating of 4+, making it suitable for a wide range of users who need to track their asthma.

Is Peak Flow Diary free to use?

Yes, Peak Flow Diary is free to download and use. It also includes ads to support its continued development.