# Water Tracker vs HydroFoo

The clearest difference is update cadence: Water Tracker at weekly against HydroFoo's every 2 months. Water Tracker also leads on iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Water Tracker sells 3 in-app purchases, starting at $2.99 per 7 days and HydroFoo sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Water Tracker ships an update weekly, HydroFoo every 2 months. The most recent releases landed on October 12, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Water Tracker | HydroFoo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Size | 56 MB | 20 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Manoj Ahirwar](https://appshunter.io/developer/1822701866) | [GARRETT MICHAEL WOODSIDE](https://appshunter.io/developer/1853175827) |

## What reviewers say

### Water Tracker

[App page](https://appshunter.io/ios/app/water-tracker-hydration-log/id6755111037)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Waterly - Weekly Access | $2.99 | per 7 days |
| Waterly - Yearly Pro Access | $12.99 | per year |
| Waterly - Lifetime Pro Access | $24.99 | one-time |


### HydroFoo

[App page](https://appshunter.io/ios/app/hydrofoo-water-tracker/id6760419525)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HydroFoo Pro Monthly | $1.99 | per month |
| HydroFoo Pro Lifetime | $12.99 | one-time |


## Frequently asked questions

### Is Water Tracker free?

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

### Is HydroFoo free?

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

### Do Water Tracker or HydroFoo have ads?

Neither Water Tracker nor HydroFoo shows ads.

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

Water Tracker ships an update weekly, and HydroFoo every 2 months. Most recently, Water Tracker was updated on October 12, 2026 and HydroFoo on October 10, 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.*