Features & Capabilities

Missing small changes in your breathing can lead to worsening conditions.

Peak Flow Diary is an app that allows you to record your daily peak flow values and visualize changes in your breathing through numbers and graphs.

By keeping a record, you can more easily understand:

  • Your condition when you are feeling well
  • The timing when symptoms start to worsen
  • Daily changes and trends

This helps with your everyday health management.

Another feature is that it makes it easier to communicate your respiratory condition to your doctor during consultations by looking back at your recorded data.

Key Features:

  • Record in seconds, easy to continue daily Supports two input methods: slider and keyboard. You can continue recording effortlessly using the method that suits you best.

  • Understand changes at a glance with graphs With easy-to-read graphs that support zone displays, you can quickly check changes and trends in your breathing status.

  • Easy to review with history and notes You can check past records in a list and save notes along with them. This allows you to look back at your records alongside your daily physical condition and events.

  • Clear communication with consultation reports You can view your recorded data as a report, which can be used for explanations during medical appointments or for personal review.

  • Peace of mind with cloud storage Since data is saved in the cloud, your important records are protected even if you change your device or lose it.

  • Simple and easy to use Because it is something you use every day, we focus on a screen design that is intuitive and easy to keep using.

For those who want to maintain daily records without stress.

Why not start a habit of noticing changes before they get worse with Peak Flow Diary?

Peak Flow Diary Terms of Service https://susatthi-asthma-diary-prod.web.app/terms-of-service.html

User Growth & Download Statistics

App
By:
Keyber Inc.
Rating:
4.70
(35)
1 new ratings
Version:
5.3.0 Last updated: 2026-05-27
Version code:
886175379
Creation date:
2024-06-02
Compatible devices:
Size:
56.52MB
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Apple Apps Store
Data ingested on:
2026-06-04
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Apple app. Please use these information below to contact the Apple app developer.
Developed by:
Keyber Inc.
Apple Apps Store
https://apps.apple.com/us/app/peak-flow-diary-asthma/id6463603745
Website:
https://keyber.jp

User Reviews

First time I bumped into this app and the ease and clarity was a winner for me.
by Mi*****, 2025-01-27
View all user reviews ›

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