Comparison

Peflog vs PEF Aware

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Peflog

Easily monitor and assess Peak Expiratory Flow (PEF) with this asthma tracker. It digitizes manual data, generates comprehensive reports, and helps understand medication impact, supporting treatment decisions and self-monitoring.

Highlights
  • Save Peak Flow readings
  • Edit readings and monitoring periods
  • Medication puff timer
  • Comprehensive reports and charts
  • Bronchodilatation tracking
  • Color-coded zones (green, yellow, red)
  • Exportable PDF reports
Features
Read full description

Peflog asthma tracker makes Peak Expiratory Flow monitoring and assessment and reporting super easy. All data is stored into your own account so that you have full control of it and we don't share your data with anybody else. Peflog asthma monitor supports treatment decisions, it works as an asthma assessment helper, and it can be used for asthma self monitoring and reporting with ease. It helps asthma doctors, nurses and users workload by automating and digitising manual phases to export, transform, present and send data that is needed for asthma monitoring and diagnosis. Peflog understands bronchodilatation and it creates comprehensive reports. I'm a father of four and found traditional PEF monitoring boring, time consuming and error prone. I tried to use pen and paper with my children but it didn't really work out. I created snappy Peflog app for myself and for my children in order to make asthma tracking as easy and fast as possible for everybody. IMPORTANT! This applications is not a medical device nor its substitute. You must use your own certified peak flow meter and consult a healthcare professional about its correct usage. This application provides information as is and should not be treated as a medical advice. You should always consult your healthcare professional in your health related issues and appropriate usage of the information. Features - Save Peak Flow readings with ease - Edit readings and monitoring periods - A timer reminds about the next puff after having medication - Comprehensive report and charts - Daily variation - Bronchodilatation (impact of the medication) - Reference PEF (calculated based on age, height and gender) - Personal best (calculated or manual) - Colour zones (green, yellow, red) - Alarming variations indicated in red - The PDF report is easy to send out - Dark and light colour themes - Languages: English, Finnish, Norwegian, German, Spanish, Swedish, Italian, French, Chinese - Available for other platforms too

About

PEF Aware

Features
Read full description

PEF Aware helps you track Peak Expiratory Flow (PEF) measurements for asthma diagnosis and monitoring. Replace paper PEF diaries with an app that stores data on your device, reminds you to measure, and creates PDF reports matching standard forms. TRACK YOUR MEASUREMENTS Log morning and evening PEF values with separate entries before and after medication. View daily summaries, variability, and history across monitoring periods. DESIGNED FOR CLINICAL USE Generate PDF reports; ready to share or print for your healthcare provider. STAYS ON YOUR DEVICE No account required. Your health data is stored locally. Optional export/import and iCloud sync on iOS let you back up when you choose. REMINDERS Set morning and evening reminder times so you do not miss measurements during a monitoring period. PEF Aware is a tracking tool. It does not replace medical advice. Always follow guidance from your healthcare professional. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Peflog4 screens
PEF Aware4 screens

Verdict

The call

The clearest difference is price: PEF Aware at Free against Peflog's $1.99. Peflog's advantage is in-app purchases (none vs 3) and ads (none vs shown). On update cadence, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

PEF Aware is free to download; Peflog costs $1.99 up front. PEF Aware sells 3 in-app purchases, starting at $0.99 per month. Peflog asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
Peflog versus PEF Aware: the parameters behind the verdict, then further details
ParameterPeflogPEF Aware
Price$1.99Free — better
Rating2.5 (2 ratings) — better—
Positive reviews65.6% of reviews—
Number of ratings2 — better—
Update frequencyMonthlyMonthly
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size40 MB44 MB
Age rating4+17+
DeveloperPasi KivikangasPetri Paavilainen

In-app purchases

None

Peflog

No in-app purchases

3 purchases

PEF Aware

Subscriptions2
  • Premium 1 Month$0.991 Month
  • Premium 1 Week$0.997 Days
One-time1
  • Premium$3.99

Questions

Is Peflog free?
Peflog costs $1.99, with no in-app purchases.
Is PEF Aware free?
PEF Aware is free to download, with in-app purchases available.
Do Peflog or PEF Aware have ads?
PEF Aware shows ads; Peflog does not.
Which is updated more often, Peflog or PEF Aware?
Peflog ships an update monthly, and PEF Aware monthly. Most recently, Peflog was updated on October 29, 2026 and PEF Aware on October 25, 2026.

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