# Chiari Symptom Tracker vs Easy Peak Flow Diary

Chiari Symptom Tracker and Easy Peak Flow Diary both sit at 3.5 stars, but that hides the real split: 79% of Easy Peak Flow Diary's written reviews are positive against 0% of Chiari Symptom Tracker's. Easy Peak Flow Diary also leads on ratings volume (18 vs 6). Chiari Symptom Tracker's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, rating, update cadence and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Easy Peak Flow Diary holds the better App Store score, 3.7 against 3.5. Both are backed by a comparable volume of ratings — 6 and 18 respectively. Written reviews point the same way: 0% of Chiari Symptom Tracker's written reviews are positive against 79% of Easy Peak Flow Diary's.

Chiari Symptom Tracker ships an update every 9 months, Easy Peak Flow Diary every 13 months. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Chiari Symptom Tracker | Easy Peak Flow Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (6 ratings)](https://appshunter.io/ios/app/chiari-symptom-tracker/id1458297447/reviews) | **[3.7 (18 ratings)](https://appshunter.io/ios/app/easy-peak-flow-diary/id1562094758/reviews)** |
| Number of ratings | 6 | **18** |
| Positive reviews | 0.0% of reviews | **78.6% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 9 months** | Every 13 months |
| Monetization | **Free** | Ad-supported |
| Size | 9 MB | 18 MB |
| Requires iOS | 12.1 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Brian Smith](https://appshunter.io/developer/421170267) | [Simon lebech Cichosz](https://appshunter.io/developer/428989569) |

## What reviewers say

### Chiari Symptom Tracker

[App page](https://appshunter.io/ios/app/chiari-symptom-tracker/id1458297447)

This app allows users to log symptoms related to Chiari malformations, noting their intensity. It automatically records the date and time for each entry, providing a structured way to monitor health.

**Highlights:** Track Chiari malformation symptoms, Log symptom intensity, Automatic date and time stamping, User-friendly interface, Medical symptom logging

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Chiari Symptom Tracker free?

Chiari Symptom Tracker is free to download, with no in-app purchases.

### Is Easy Peak Flow Diary free?

Easy Peak Flow Diary is free to download, with no in-app purchases.

### Which has better reviews, Chiari Symptom Tracker or Easy Peak Flow Diary?

Easy Peak Flow Diary is rated higher. Chiari Symptom Tracker averages 3.5 out of 5 from 6 ratings, while Easy Peak Flow Diary averages 3.7 from 18 ratings.

### Do Chiari Symptom Tracker or Easy Peak Flow Diary have ads?

Easy Peak Flow Diary shows ads; Chiari Symptom Tracker does not.

### Which is updated more often, Chiari Symptom Tracker or Easy Peak Flow Diary?

Chiari Symptom Tracker ships an update every 9 months, and Easy Peak Flow Diary every 13 months. Most recently, Chiari Symptom Tracker was updated on October 20, 2026 and Easy Peak Flow Diary 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.*