Peak Flow Diary (Asthma)

6.2.0

Keyber Inc.

3.75

137 reviews

1,000+
Downloads

Free

Track peak flow and spot changes early. See trends at a glance with graphs.

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Screenshots by Keyber Inc., from the Google Play listing

View on Google Play

About Peak Flow Diary (Asthma)

Peak Flow Diary (Asthma) is a health & fitness app developed by Keyber Inc.

Install Statistics

Peak Flow Diary (Asthma) has been installed 4.5 thousand times. In the last 30 days, the app was installed 380 times.

User Ratings

Peak Flow Diary (Asthma) is rated 3.75 out of 5 stars. The rating is based on 140 ratings.

App Information

Peak Flow Diary (Asthma) is freely available from Google Play. The app size is 34.41 MB. The latest version available is 6.2.0. The last update was on October 26, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play since September 2023.

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 Google Play.

Description by Keyber Inc. (from Google Play)

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

More data about Peak Flow Diary (Asthma)

Price	Free
Total installs	4.5 thousand
Recent installs	380
Rating	3.75 based on 140 ratings
Ranking	Not ranked
Version	6.2.0
App size	34.4 MB
Number of libraries	?
Suitable for	Everyone
Ads	Contains ads

App Performance Report

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Alternatives to Peak Flow Diary (Asthma)

Google Play Rating history and histogram

Installs over time

Peak Flow Diary (Asthma) has been installed 4.5 thousand times. Over the past 30 days, it averaged 13 installs per day.

Changelog of Peak Flow Diary (Asthma)

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Developer information for Keyber Inc.

Keyber Inc.

support@keybebr.jp

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Comments on Peak Flow Diary (Asthma) for Android

★★★★☆ Alison Mutch · May 9, 2026

I need to be able to change the zones green 347-434, yellow 218-345, red 217 and below. 52 female 5'7" 210. Current zones don't reflect me.

★★★★☆ Montaigne · Jul 12, 2026

A useful tool to help anyone with breathing issues to maintain a good record for professionals to consider. Simple interface that does what it says on the tin. VG.

★★★★☆ Keris · Jul 17, 2026

Very good app definitely recommend very helpful ful to see charts but unable to see symptoms trackers but peak flow charts help me more.

★★★★☆ Nikolina Skorupan · Apr 11, 2026

Easy PEF logging with a clear graphical overview. Major downside: no PDF export for data or charts. Additionally, the graph fails to update with new values after one month of use. Update - the graph problem is solved with new version. Still no option for export for data

★☆☆☆☆ Jenn Perry · Aug 29, 2026

14 day free trial, then $3.50-ish a month, or $25 a year feels like it. This info should be included in the app description. I may come back if I can't find a better option, but for now I won't be using this app.

★★☆☆☆ Kathy Burns · Jul 25, 2026

I like the app but came in today and find out it's not really free and my previous information has been deleted unless I pay $24.99 annually. Very disappointed because although it's basic I'm unable to afford to continue using it.

Google Play Rankings for Peak Flow Diary (Asthma)

This app is not ranked

Technologies used by Peak Flow Diary (Asthma)

19 permissions

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Frequently asked questions about Peak Flow Diary (Asthma)

Is Peak Flow Diary (Asthma) free?

Yes. Peak Flow Diary (Asthma) is free on Google Play.

Is Peak Flow Diary (Asthma) still available?

Yes. Peak Flow Diary (Asthma) is on Google Play, and the last update we saw was on October 26, 2026.

Does Peak Flow Diary (Asthma) contain ads?

Yes. Google Play lists Peak Flow Diary (Asthma) as containing ads.

How large is Peak Flow Diary (Asthma)?

Peak Flow Diary (Asthma) is 34.41 MB.

Is Peak Flow Diary (Asthma) suitable for children?

Google Play rates the content of Peak Flow Diary (Asthma) as suitable for everyone.

How many times has Peak Flow Diary (Asthma) been installed?

Google Play lists 1,000+ installs for Peak Flow Diary (Asthma).

How do people rate Peak Flow Diary (Asthma)?

Peak Flow Diary (Asthma) scores 3.75 out of 5 stars, from 137 ratings on Google Play.

Who made Peak Flow Diary (Asthma)?

Peak Flow Diary (Asthma) was developed by Keyber Inc. It is listed in the health & fitness category on Google Play.

What are the best alternatives to Peak Flow Diary (Asthma)?

People looking at Peak Flow Diary (Asthma) also look at these health & fitness apps: Peak Flow, Asthma Tracker, Peak Flow: Monitor your Asthma, Smart Asthma: Forecast Asthma, Breaths Per Minute.

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