# おみず シンプル水分記録 vs WaterCoach

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

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

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

## The numbers

| Metric | おみず シンプル水分記録 | WaterCoach |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Fortnightly |
| Size | 44 MB | 71 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ryotaro Shimada](https://appshunter.io/developer/1799537291) | [Iko Nakari](https://appshunter.io/developer/1476223181) |

## 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


### WaterCoach

[App page](https://appshunter.io/ios/app/watercoach/id6777726344)

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

**In-app purchases:** none


## 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 WaterCoach free?

WaterCoach is free to download, with no in-app purchases.

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

WaterCoach shows ads; おみず シンプル水分記録 does not.

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

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

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*