# Easy Peak Flow Diary vs Peak Flow Diary | Asthma

The clearest difference is rating: Peak Flow Diary | Asthma at 4.7 against Easy Peak Flow Diary's 3.7. Peak Flow Diary | Asthma also leads on update cadence (every 3 weeks vs every 13 months). Easy Peak Flow Diary's advantage is in-app purchases (none vs 2) and iOS requirement (11.0 vs 15.0). On price, review sentiment, ratings volume and ads there is nothing between them.

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

Peak Flow Diary | Asthma holds the better App Store score, 4.7 against 3.7. Both are backed by a comparable volume of ratings — 18 and 36 respectively. Written reviews complicate that: 79% of Easy Peak Flow Diary's written reviews are positive against 74% of Peak Flow Diary | Asthma's, so the app with the better star average is not the one people write more warmly about.

Easy Peak Flow Diary ships an update every 13 months, Peak Flow Diary | Asthma every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Easy Peak Flow Diary | Peak Flow Diary | Asthma |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (18 ratings)](https://appshunter.io/ios/app/easy-peak-flow-diary/id1562094758/reviews) | **[4.7 (36 ratings)](https://appshunter.io/ios/app/peak-flow-diary-asthma/id6463603745/reviews)** |
| Number of ratings | 18 | **36** |
| Positive reviews | **78.6% of reviews** | 74.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 13 months | **Every 3 weeks** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 18 MB | 57 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Simon lebech Cichosz](https://appshunter.io/developer/428989569) | [Keyber Inc.](https://appshunter.io/developer/1571255559) |

## What reviewers say

### Easy Peak Flow Diary

[App page](https://appshunter.io/ios/app/easy-peak-flow-diary/id1562094758)

This free app helps individuals with asthma and other lung diseases track their peak flow and symptoms. It offers simple logging, data visualization, and the ability to export records for physicians. It is not a peak flow meter itself but a diary for recording readings from a separate device.

**Highlights:** Peak flow and symptom tracking, Data visualization and charting, Optional comments for entries, Data backup and export via email, No account or internet needed, Local data storage

**Features:** macOS Compatibility

**In-app purchases:** none


### Peak Flow Diary | Asthma

[App page](https://appshunter.io/ios/app/peak-flow-diary-asthma/id6463603745)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $3.99 | per month |
| Annual Plan | $24.99 | per year |


## Frequently asked questions

### Is Easy Peak Flow Diary free?

Easy Peak Flow Diary 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.

### Which has better reviews, Easy Peak Flow Diary or Peak Flow Diary | Asthma?

Peak Flow Diary | Asthma is rated higher. Easy Peak Flow Diary averages 3.7 out of 5 from 18 ratings, while Peak Flow Diary | Asthma averages 4.7 from 36 ratings.

### Do Easy Peak Flow Diary or Peak Flow Diary | Asthma have ads?

Both Easy Peak Flow Diary and Peak Flow Diary | Asthma show ads.

### Which is updated more often, Easy Peak Flow Diary or Peak Flow Diary | Asthma?

Easy Peak Flow Diary ships an update every 13 months, and Peak Flow Diary | Asthma every 3 weeks. Most recently, Easy Peak Flow Diary was updated on October 24, 2026 and Peak Flow Diary | Asthma on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*