# Water Tracker vs Hydroo

Water Tracker and Hydroo are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Water Tracker ships an update every 3 weeks, Hydroo fortnightly. Both last shipped on November 4, 2026.

## The numbers

| Metric | Water Tracker | Hydroo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Size | 6 MB | 23 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ISTACK DEVELOPMENT](https://appshunter.io/developer/1678535499) | [Khawlah Bawazir](https://appshunter.io/developer/1627702695) |

## What reviewers say

### Water Tracker

[App page](https://appshunter.io/ios/app/water-tracker-hydrate-and-drink/id6478458644)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Hydroo

[App page](https://appshunter.io/ios/app/hydroo/id6504790565)

**In-app purchases:** none


## Frequently asked questions

### Is Water Tracker free?

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

### Is Hydroo free?

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

### Do Water Tracker or Hydroo have ads?

Neither Water Tracker nor Hydroo shows ads.

### Which is updated more often, Water Tracker or Hydroo?

Water Tracker ships an update every 3 weeks, and Hydroo fortnightly. Most recently, Water Tracker was updated on November 4, 2026 and Hydroo on November 4, 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.*