Comparison

AsthmaTuner vs Peak Flow Diary | Asthma

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

Head to head
About

AsthmaTuner

Read full description

Optimize Treatment Asthma is a variable condition that is affected by different factors. The treatment needs to be adjusted more often than patients are able to meet with their healthcare provider. AsthmaTuner gives you the tools to treat your Asthma and tailors your medication to how you are currently feeling. Quickly Receive an Evaluation When you blow into the spirometer, your lung function is recorded in the app. AsthmaTuner measures a value called FEV1 and is the same used by your asthma specialist at evaluations. Answer four questions about your symptoms and receive an evaluation whenever and wherever you want. Follow your Asthma over Time Your values are saved as you go so that you can gain insights into how you’ve been feeling over time. Pollen and Weather Tracking We track pollen and weather, select the types that affect you and we'll keep an eye on them Reminders Set reminders so you never forget to take your medicine or test your lung function. Follow friends and family Does your loved one have asthma? Create an account for them and follow their asthma from your own phone. Share Information You can share your asthma stats and information with your healthcare provider, making it easy for them to adjust your treatment. AsthmaTuner facilitates consultations with healthcare providers over the phone or video call. MediTuner AB MediTuner is the maker of AsthmaTuner and our goal is to be world-leading in educating patients and everyday at-home care of asthma. AsthmaTuner is a patented self-care system that connects patients with asthma specialists for better healthcare.

About

Peak Flow Diary | Asthma

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.

Highlights
  • 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
Features
Read full description

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

Screenshots

AsthmaTuner4 screens
Peak Flow Diary | Asthma4 screens

Verdict

The call

The clearest difference is in-app purchases: AsthmaTuner at none against Peak Flow Diary | Asthma's 2. AsthmaTuner also leads on ads (none vs shown). Peak Flow Diary | Asthma's advantage is device support (3 vs 1). On price, update cadence 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

Both are free to download. Peak Flow Diary | Asthma sells 2 in-app purchases, starting at $3.99 per month. AsthmaTuner asks for nothing beyond the download.

UpkeepUpdate frequency

AsthmaTuner ships an update fortnightly, Peak Flow Diary | Asthma every 3 weeks. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.

Scorecard3 real differences · 7 level
AsthmaTuner versus Peak Flow Diary | Asthma: the parameters behind the verdict, then further details
ParameterAsthmaTunerPeak Flow Diary | Asthma
PriceFreeFree
Rating—4.7 (35 ratings) — better
Positive reviews—74.2% of reviews
Number of ratings—35 — better
Update frequencyFortnightly — betterEvery 3 weeks
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.415.0 — better
Further details — not scored
Size185 MB57 MB
Age rating12+4+
DeveloperMedituner ABKeyber Inc.

In-app purchases

None

AsthmaTuner

No in-app purchases

2 purchases

Peak Flow Diary | Asthma

Subscriptions2
  • Monthly Plan14 Days trial$3.991 Month
  • Annual Plan14 Days trial$24.991 Year

Questions

Is AsthmaTuner free?
AsthmaTuner is free to download, with no in-app purchases.
Is Peak Flow Diary | Asthma free?
Peak Flow Diary | Asthma is free to download, with in-app purchases available.
Do AsthmaTuner or Peak Flow Diary | Asthma have ads?
Peak Flow Diary | Asthma shows ads; AsthmaTuner does not.
Which is updated more often, AsthmaTuner or Peak Flow Diary | Asthma?
AsthmaTuner ships an update fortnightly, and Peak Flow Diary | Asthma every 3 weeks. Most recently, AsthmaTuner was updated on September 23, 2026 and Peak Flow Diary | Asthma on September 24, 2026.

Other comparisons