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App Store Apps > Medical > Peak Flow Diary | Asthma
App profile & analytics · Medical · Data updated 2026-10-04
Peak Flow Diary | Asthma icon

Peak Flow Diary | Asthma

by Keyber Inc. · Free · Version 6.1.0
Availability On the App Store since June 2024 ↗
Rating on App Store
4.71/5
35 ratings
Rating
4.71
35 reviews
Best rank
–
not in the top lists
Last updated
September 8, 2026
6.1.0
AppBrain's verdict

It doesn't have enough ratings yet to judge what users think.

Peak Flow Diary | Asthma is made and published by Keyber Inc.. AppBrain is an independent app data site and isn't affiliated with Keyber Inc.. The app name, icon, screenshots and description belong to Keyber Inc. and are shown as published on the App Store.

About Peak Flow Diary | Asthma

Peak Flow Diary | Asthma is a medical app developed by Keyber Inc..

User Ratings

Peak Flow Diary | Asthma is rated 4.71 out of 5 stars. The rating is based on 35 ratings.

App Information

Peak Flow Diary | Asthma is freely available from the App Store. The app size is 56.89 MB. The latest version available is 6.1.0. The last update was on September 8, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on the App Store since June 2024.

Description by Keyber Inc. (from the App Store)
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
Show more Show less

Screenshots

Peak Flow Diary | Asthma Screenshot 1 of 6
Peak Flow Diary | Asthma Screenshot 2 of 6
Peak Flow Diary | Asthma Screenshot 3 of 6
Peak Flow Diary | Asthma Screenshot 4 of 6
Peak Flow Diary | Asthma Screenshot 5 of 6
Peak Flow Diary | Asthma Screenshot 6 of 6
Screenshots by Keyber Inc., from the the App Store listing
Official page on the App Store

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Changelog of Peak Flow Diary | Asthma

No changelog data

Developer information for Keyber Inc.

Keyber Inc.

Address:

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App Store Rankings for Peak Flow Diary | Asthma

This app is not ranked

Technologies used by Peak Flow Diary | Asthma

Apps other people are watching Today's trending apps Price drops on Google Play Popular Medical Apps Top new apps
Daily Breathe: Asthma Tracker icon Daily Breathe: Asthma Tracker
ピークフロー icon ピークフロー
Easy Peak Flow Diary icon Easy Peak Flow Diary
Your Peak Flow icon Your Peak Flow
Peflog - asthma tracker icon Peflog - asthma tracker
FlowPeak icon FlowPeak
Propeller icon Propeller
Kata - Inhalation Coach icon Kata - Inhalation Coach
Overview Alternatives Reviews Rankings Technology
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