# 頭痛ダイアリー vs Simple Headache Log

The clearest difference is in-app purchases: 頭痛ダイアリー at none against Simple Headache Log's 2. 頭痛ダイアリー also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.6). Simple Headache Log's advantage is update cadence (every 3 days vs every 7 months). On price and device support there is nothing between them.

Both are free to download. Simple Headache Log sells 2 in-app purchases, starting at $1.49 per month. 頭痛ダイアリー asks for nothing beyond the download.

頭痛ダイアリー ships an update every 7 months, Simple Headache Log every 3 days. Both last shipped on November 3, 2026.

## The numbers

| Metric | 頭痛ダイアリー | Simple Headache Log |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.5 (2 ratings)](https://appshunter.io/ios/app/simple-headache-log/id6446395359/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Every 3 days** |
| Monetization | — | Free with in-app purchases |
| Size | 21 MB | 56 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Tomokazu Hashiguchi](https://appshunter.io/developer/1672630713) | [NAOYA ONO](https://appshunter.io/developer/1530328146) |

## What reviewers say

### 頭痛ダイアリー

[App page](https://appshunter.io/ios/app/id1672630711)

**Features:** macOS Compatibility

**In-app purchases:** none


### Simple Headache Log

[App page](https://appshunter.io/ios/app/simple-headache-log/id6446395359)

Easily log daily headaches by selecting pain level, weather, and potential causes. Analyze trends and identify triggers through simple charts and rankings. Record past data and manage custom pain factors.

**Highlights:** Easy pain logging with options, Analyze pain trends by weather and cause, Calendar view of daily pain levels, Add past headache data, Customizable pain causes and medicines, No login required

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Plan | $1.49 | per month |
| Support Developer | $0.99 | one-time |


## Frequently asked questions

### Is 頭痛ダイアリー free?

頭痛ダイアリー is free to download, with no in-app purchases.

### Is Simple Headache Log free?

Simple Headache Log is free to download, with in-app purchases available.

### Do 頭痛ダイアリー or Simple Headache Log have ads?

Simple Headache Log shows ads; 頭痛ダイアリー does not.

### Which is updated more often, 頭痛ダイアリー or Simple Headache Log?

頭痛ダイアリー ships an update every 7 months, and Simple Headache Log every 3 days. Most recently, 頭痛ダイアリー was updated on November 3, 2026 and Simple Headache Log on November 3, 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.*