# おみず シンプル水分記録 vs WaterPulse

The clearest difference is in-app purchases: おみず シンプル水分記録 at none against WaterPulse's 1. おみず シンプル水分記録 also leads on update cadence (every 5 days vs every 6 weeks) and iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. WaterPulse sells 1 one-off in-app purchase. おみず シンプル水分記録 asks for nothing beyond the download.

おみず シンプル水分記録 ships an update every 5 days, WaterPulse every 6 weeks. The most recent releases landed on November 6, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | おみず シンプル水分記録 | WaterPulse |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 6 weeks |
| Size | 44 MB | 3 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ryotaro Shimada](https://appshunter.io/developer/1799537291) | [Shanghai Runesmith Artificial Intelligence Technology Co., Ltd.](https://appshunter.io/developer/1872991929) |

## What reviewers say

### おみず シンプル水分記録

[App page](https://appshunter.io/ios/app/id6761106954)

**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 おみず シンプル水分記録 free?

おみず シンプル水分記録 is free to download, with no in-app purchases.

### Is WaterPulse free?

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

### Do おみず シンプル水分記録 or WaterPulse have ads?

Neither おみず シンプル水分記録 nor WaterPulse shows ads.

### Which is updated more often, おみず シンプル水分記録 or WaterPulse?

おみず シンプル水分記録 ships an update every 5 days, and WaterPulse every 6 weeks. Most recently, おみず シンプル水分記録 was updated on November 6, 2026 and WaterPulse on November 9, 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.*