# Mizu Water Tracker Hydration vs FastenTracker

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

Both are free to download. Mizu Water Tracker Hydration sells 2 in-app purchases, starting at $9.99 per 7 days and FastenTracker sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Mizu Water Tracker Hydration ships an update fortnightly, FastenTracker daily. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Mizu Water Tracker Hydration | FastenTracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Daily** |
| Size | 1 MB | 3 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Oleskii Novikov](https://appshunter.io/developer/1645062194) | [Christoph Henning](https://appshunter.io/developer/1896688601) |

## What reviewers say

### 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 |


### FastenTracker

[App page](https://appshunter.io/ios/app/fastentracker/id6769792615)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kaffee | $0.99 | one-time |
| Kaffee & Croissant | $2.99 | one-time |
| Pizza | $3.99 | one-time |


## Frequently asked questions

### Is Mizu Water Tracker Hydration free?

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

### Is FastenTracker free?

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

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

Neither Mizu Water Tracker Hydration nor FastenTracker shows ads.

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

Mizu Water Tracker Hydration ships an update fortnightly, and FastenTracker daily. Most recently, Mizu Water Tracker Hydration was updated on October 25, 2026 and FastenTracker on October 24, 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.*