# HydroDay vs WaterPaw

The clearest difference is in-app purchases: HydroDay at none against WaterPaw's 3. WaterPaw's advantage is ads (none vs shown). On price, device support and iOS requirement there is nothing between them.

Both are free to download. WaterPaw sells 3 in-app purchases, starting at $2.99 per month. HydroDay asks for nothing beyond the download.

## The numbers

| Metric | HydroDay | WaterPaw |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | — | Every 6 weeks |
| Size | 37 MB | 81 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Geonung Cheong](https://appshunter.io/developer/1799622308) | [Vladislav Siumbeli](https://appshunter.io/developer/1830282251) |

## What reviewers say

### HydroDay

[App page](https://appshunter.io/ios/app/hydroday/id6756011046)

**Features:** macOS Compatibility

**In-app purchases:** none


### WaterPaw

[App page](https://appshunter.io/ios/app/waterpaw-hydration-tracker/id6769810472)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Annual | $24.99 | per year |
| Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is HydroDay free?

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

### Is WaterPaw free?

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

### Do HydroDay or WaterPaw have ads?

HydroDay shows ads; WaterPaw 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.*