# HydroHabit vs Flow

The clearest difference is price: HydroHabit at Free against Flow's $3.99. HydroHabit also leads on iOS requirement (12.0 vs 16.2). Flow's advantage is ads (none vs shown). On in-app purchases and device support there is nothing between them.

HydroHabit is free to download; Flow costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | HydroHabit | Flow |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | — | Every 3 days |
| Size | 24 MB | 36 MB |
| Requires iOS | **12.0** | 16.2 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Khalid Fouad](https://appshunter.io/developer/1761682958) | [LOKRIS](https://appshunter.io/developer/1399579866) |

## What reviewers say

### HydroHabit

[App page](https://appshunter.io/ios/app/hydrohabit-water-tracker/id6744905128)

**Features:** macOS Compatibility

**In-app purchases:** none


### Flow

[App page](https://appshunter.io/ios/app/flow-hydration-tracker/id6758463516)

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

**In-app purchases:** none


## Frequently asked questions

### Is HydroHabit free?

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

### Is Flow free?

Flow costs $3.99, with no in-app purchases.

### Do HydroHabit or Flow have ads?

HydroHabit shows ads; Flow does not.

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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.*