# AsthmaMD vs Peak Flow Diary | Asthma

The clearest difference is rating: Peak Flow Diary | Asthma at 4.7 against AsthmaMD's 2.0. Peak Flow Diary | Asthma also leads on review sentiment (74% vs 50%) and update cadence (every 3 weeks vs every 2 months). AsthmaMD's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price, ratings volume and device support 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. AsthmaMD asks for nothing beyond the download.

Peak Flow Diary | Asthma holds the better App Store score, 4.7 against 2.0. Both are backed by a comparable volume of ratings — 62 and 35 respectively. Written reviews point the same way: 50% of AsthmaMD's written reviews are positive against 74% of Peak Flow Diary | Asthma's.

AsthmaMD ships an update every 2 months, Peak Flow Diary | Asthma every 3 weeks. The most recent releases landed on October 12, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | AsthmaMD | Peak Flow Diary | Asthma |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (62 ratings)](https://appshunter.io/ios/app/asthmamd/id349343083/reviews) | **[4.7 (35 ratings)](https://appshunter.io/ios/app/peak-flow-diary-asthma/id6463603745/reviews)** |
| Number of ratings | **62** | 35 |
| Positive reviews | 50.3% of reviews | **74.2% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 13 MB | 57 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Mobile Breeze](https://appshunter.io/developer/348333248) | [Keyber Inc.](https://appshunter.io/developer/1571255559) |

## What reviewers say

### AsthmaMD

[App page](https://appshunter.io/ios/app/asthmamd/id349343083)

Track your asthma symptoms, triggers, and medications with this comprehensive management app. Visualize your asthma activity with color graphs and share data with your physician. Contribute to asthma research by participating anonymously.

**Highlights:** Asthma and COPD journal, Color graph visualization, Patent pending Asthma Action Plan, Physician data sharing, Medication tracking, Trigger tracking, Anonymous research participation

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Helpful for tracking asthma
- 💡 Useful for sharing data with doctors
- 🚀 Convenient to have on phone

**What reviewers complain about**

- 🐛 App crashes or stops working
- 🐛 Unreliable data saving
- 🐛 Inflexible settings and customization
- 🐛 Outdated and not maintained

**Reported bugs**

- Unable to create account or log in
- Incorrect data displayed on charts and graphs
- Medication reminders not working properly

**Requested features**

- More customizable medication tracking
- Ability to track multiple peak flow readings per day
- Free-form notes section
- Integration with health apps/services


### 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 AsthmaMD free?

AsthmaMD 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, AsthmaMD or Peak Flow Diary | Asthma?

Peak Flow Diary | Asthma is rated higher. AsthmaMD averages 2.0 out of 5 from 62 ratings, while Peak Flow Diary | Asthma averages 4.7 from 35 ratings.

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

Peak Flow Diary | Asthma shows ads; AsthmaMD does not.

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

AsthmaMD ships an update every 2 months, and Peak Flow Diary | Asthma every 3 weeks. Most recently, AsthmaMD was updated on October 12, 2026 and Peak Flow Diary | Asthma on October 18, 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.*