Peak Flow Diary | Asthma

Peak Flow Diary | Asthma

Understand Your Breathing

35 ratings
25 reviews
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • June 2, 2024
  • August 6, 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
iphone
ipad
🖼️Get Icon
Icons↘︎

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
Show original description

What's New in Peak Flow Diary | Asthma

6.0.2

August 6, 2026

Introducing Premium! [New] - Added Premium - Added Breathing Monitor (Premium only) - Added Graph Comparison (Premium only) [Improvements] - Improved the Medical Report design - Changed graphs to display the most recent dates instead of - Monday-based weeks - Improved the UI/UX for a better experience - Adjusted ads in the free version - Updated the libraries used by the app - Fixed minor bugs

More

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!

概ね満足していますが

いつのまにか折れ線グラフが点だけになり線で繋がらなくなってしまった。改善方が分かると嬉しい。

Response from developer

期間「月」を選択したときに線が表示されない問題を修正しました!今後ともご利用お願い致します!

使いやすいです!

ピークフローで喘息を管理しているので、毎日使わせていただいています。操作性もよく、とても使いやすいです。
一つ、お願いがあります。
ピークフローの数値は入れなくてもメモだけで残せるようになるとありがたいです!出先などで、体調だけを記録に残したいことがあるので…
今後も使わせていただきますので、よろしくお願いいたします!

追記:有料でも構いませんので、完全に広告が消せると嬉しいです。

Response from developer

ありがとうございます!検討致します!

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.