# HydroRing vs Mizu Water Tracker Hydration

The clearest difference is update cadence: Mizu Water Tracker Hydration at fortnightly against HydroRing's every 6 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. HydroRing sells 1 one-off in-app purchase and Mizu Water Tracker Hydration sells 2 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

HydroRing ships an update every 6 weeks, Mizu Water Tracker Hydration fortnightly. Both last shipped on October 25, 2026.

## The numbers

| Metric | HydroRing | Mizu Water Tracker Hydration |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Fortnightly** |
| Size | 2 MB | 1 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [torankirite](https://appshunter.io/developer/1883564850) | [Oleskii Novikov](https://appshunter.io/developer/1645062194) |

## What reviewers say

### 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 |


### Mizu Water Tracker Hydration

[App page](https://appshunter.io/ios/app/mizu-water-tracker-hydration/id6760842322)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mizu Pro Weekly | $9.99 | per 7 days |
| Mizu Pro Annual | $49.99 | per year |


## Frequently asked questions

### Is HydroRing free?

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

### Is Mizu Water Tracker Hydration free?

Mizu Water Tracker Hydration is free to download, with in-app purchases available.

### Do HydroRing or Mizu Water Tracker Hydration have ads?

Neither HydroRing nor Mizu Water Tracker Hydration shows ads.

### Which is updated more often, HydroRing or Mizu Water Tracker Hydration?

HydroRing ships an update every 6 weeks, and Mizu Water Tracker Hydration fortnightly. Most recently, HydroRing was updated on October 25, 2026 and Mizu Water Tracker Hydration on October 25, 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.*