# ワンタップ水分補給 vs HydroRing

The clearest difference is in-app purchases: ワンタップ水分補給 at none against HydroRing's 1. HydroRing's advantage is ads (none vs shown) and iOS requirement (16.0 vs 18.5). On price and device support there is nothing between them.

Both are free to download. HydroRing sells 1 one-off in-app purchase. ワンタップ水分補給 asks for nothing beyond the download.

## The numbers

| Metric | ワンタップ水分補給 | HydroRing |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | — | Every 6 weeks |
| Size | 5 MB | 2 MB |
| Requires iOS | 18.5 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 12+ | 4+ |
| Developer | [NARUKI ANDO](https://appshunter.io/developer/1839150863) | [torankirite](https://appshunter.io/developer/1883564850) |

## What reviewers say

### ワンタップ水分補給

[App page](https://appshunter.io/ios/app/id6752374258)

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

**In-app purchases:** none


### HydroRing

[App page](https://appshunter.io/ios/app/hydroring-water-tracker/id6760393366)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HydroRing Premium | $3.99 | one-time |


## Frequently asked questions

### Is ワンタップ水分補給 free?

ワンタップ水分補給 is free to download, with no in-app purchases.

### Is HydroRing free?

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

### Do ワンタップ水分補給 or HydroRing have ads?

ワンタップ水分補給 shows ads; HydroRing does not.

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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.*