# Water tracker vs HydraFill

The clearest difference is in-app purchases: HydraFill at none against Water tracker's 3. HydraFill also leads on update cadence (every 2 days vs every 3 weeks) and iOS requirement (15.0 vs 17.0). Water tracker's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Water tracker sells 3 in-app purchases, starting at $1.99 per month. HydraFill asks for nothing beyond the download.

Water tracker ships an update every 3 weeks, HydraFill every 2 days. Both last shipped on October 15, 2026.

## The numbers

| Metric | Water tracker | HydraFill |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hydrafill-hydration-tracker/id6790350987/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | — | Free with in-app purchases |
| Size | 34 MB | 102 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [EFSTATHIOS KARACHISARIDIS](https://appshunter.io/developer/1741116796) | [Parthkumar Saliya](https://appshunter.io/developer/1895160511) |

## What reviewers say

### Water tracker

[App page](https://appshunter.io/ios/app/water-tracker-nero/id6746967898)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $7.99 | per year |
| Lifetime | $17.99 | one-time |


### HydraFill

[App page](https://appshunter.io/ios/app/hydrafill-hydration-tracker/id6790350987)

Visualize your daily water intake with an animated body silhouette that fills up with each logged drink. Track various beverages, set personalized goals, and receive custom reminders to stay hydrated. Share your progress with engaging visualizations.

**Highlights:** Animated body visualization of hydration, Log 18+ drink types with custom icons, Set personalized daily hydration goals, Customizable drink reminders, Build daily streaks and earn badges, Sync with Apple Health, Track caffeine intake, Home screen widget for quick logging

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

**In-app purchases:** none


## Frequently asked questions

### Is Water tracker free?

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

### Is HydraFill free?

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

### Do Water tracker or HydraFill have ads?

HydraFill shows ads; Water tracker does not.

### Which is updated more often, Water tracker or HydraFill?

Water tracker ships an update every 3 weeks, and HydraFill every 2 days. Most recently, Water tracker was updated on October 15, 2026 and HydraFill on October 15, 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.*