# Simple Headache Log vs みずメモリー

The clearest difference is in-app purchases: みずメモリー at none against Simple Headache Log's 2. みずメモリー also leads on ads (none vs shown). Simple Headache Log's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 18.0). On price and update cadence there is nothing between them.

Both are free to download. Simple Headache Log sells 2 in-app purchases, starting at $1.49 per month. みずメモリー asks for nothing beyond the download.

Simple Headache Log ships an update every 3 days, みずメモリー every 2 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Simple Headache Log | みずメモリー |
| --- | --- | --- |
| 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 | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 days | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 56 MB | 1 MB |
| Requires iOS | **15.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [NAOYA ONO](https://appshunter.io/developer/1530328146) | [Koki Ogawa](https://appshunter.io/developer/6812379387) |

## What reviewers say

### 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 |


### みずメモリー

[App page](https://appshunter.io/ios/app/id6812379385)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Simple Headache Log free?

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

### Is みずメモリー free?

みずメモリー is free to download, with no in-app purchases.

### Do Simple Headache Log or みずメモリー have ads?

Simple Headache Log shows ads; みずメモリー does not.

### Which is updated more often, Simple Headache Log or みずメモリー?

Simple Headache Log ships an update every 3 days, and みずメモリー every 2 days. Most recently, Simple Headache Log was updated on November 3, 2026 and みずメモリー on October 31, 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.*