# WaterFlow vs HydroFoo

The clearest difference is ads: HydroFoo at none against WaterFlow's shown. WaterFlow's advantage is update cadence (every 2 weeks vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. WaterFlow sells 3 in-app purchases, starting at $2.99 per month 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.

WaterFlow ships an update every 2 weeks, HydroFoo every 2 months. The most recent releases landed on October 6, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | WaterFlow | HydroFoo |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 16 MB | 20 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Hakan FIRAT](https://appshunter.io/developer/1822075353) | [GARRETT MICHAEL WOODSIDE](https://appshunter.io/developer/1853175827) |

## What reviewers say

### WaterFlow

[App page](https://appshunter.io/ios/app/waterflow-hydration-log/id6747625932)

This app helps you maintain consistent hydration with smart reminders, quick logging, and insightful tracking. It offers features like custom schedules, Apple Watch integration, and progress monitoring to encourage healthy habits.

**Highlights:** Smart, customizable reminders, Fast water logging with custom sizes, Track on Apple Watch, widgets, and Live Activity, Recover missed entries, Hydration insights and progress tracking, Apple Health sync

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $2.99 | per month |
| Premium Yearly | $14.99 | per year |
| Premium Lifetime | $29.99 | 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 WaterFlow free?

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

### Is HydroFoo free?

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

### Do WaterFlow or HydroFoo have ads?

WaterFlow shows ads; HydroFoo does not.

### Which is updated more often, WaterFlow or HydroFoo?

WaterFlow ships an update every 2 weeks, and HydroFoo every 2 months. Most recently, WaterFlow was updated on October 6, 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.*