# 頭痛ノート vs WaterPulse

The clearest difference is in-app purchases: 頭痛ノート at none against WaterPulse's 1. 頭痛ノート also leads on update cadence (weekly vs every 6 weeks) and iOS requirement (15.0 vs 17.0). WaterPulse's advantage is ads (none vs shown). On device support there is nothing between them.

頭痛ノート ships an update weekly, WaterPulse every 6 weeks. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 頭痛ノート | WaterPulse |
| --- | --- | --- |
| Price | — | **Free** |
| Rating | **[4.0 (2 ratings)](https://appshunter.io/ios/app/id6742800418/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 6 weeks |
| Size | 68 MB | 3 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yuki Sakurai](https://appshunter.io/developer/1587104461) | [Shanghai Runesmith Artificial Intelligence Technology Co., Ltd.](https://appshunter.io/developer/1872991929) |

## What reviewers say

### 頭痛ノート

[App page](https://appshunter.io/ios/app/id6742800418)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### WaterPulse

[App page](https://appshunter.io/ios/app/waterpulse-hydration-tracker/id6764545218)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Unlock | $2.99 | one-time |


## Frequently asked questions

### Is 頭痛ノート free?

Pricing for 頭痛ノート is not currently listed on the App Store.

### Is WaterPulse free?

WaterPulse is free to download, with in-app purchases available.

### Do 頭痛ノート or WaterPulse have ads?

頭痛ノート shows ads; WaterPulse does not.

### Which is updated more often, 頭痛ノート or WaterPulse?

頭痛ノート ships an update weekly, and WaterPulse every 6 weeks. Most recently, 頭痛ノート was updated on October 28, 2026 and WaterPulse on October 25, 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.*