# Water Tracker vs Flow

The clearest difference is price: Water Tracker at Free against Flow's $3.99. Flow's advantage is in-app purchases (none vs 5) and update cadence (every 5 days vs every 3 weeks). On ads, device support and iOS requirement there is nothing between them.

Water Tracker is free to download; Flow costs $3.99 up front. Water Tracker sells 5 in-app purchases, starting at $2.99 per month. Flow asks for nothing beyond the download.

Water Tracker ships an update every 3 weeks, Flow every 5 days. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Water Tracker | Flow |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.8 (2.3K ratings)](https://appshunter.io/ios/app/water-tracker-log-and-reminder/id1114617196/reviews)** | — |
| Number of ratings | **2.3K** | — |
| Positive reviews | 63.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Subscription | — |
| Size | 51 MB | 40 MB |
| Requires iOS | 17.0 | **16.2** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Ellisapps Inc.](https://appshunter.io/developer/318771862) | [LOKRIS](https://appshunter.io/developer/1399579866) |

## What reviewers say

### Water Tracker

[App page](https://appshunter.io/ios/app/water-tracker-log-and-reminder/id1114617196)

This app helps you track your daily water intake and stay hydrated. It calculates your personalized water needs and sends regular reminders to drink, ensuring you reach your hydration goals for optimal health. Features include customizable cups, progress tracking, and motivational rewards.

**Highlights:** Personalized water intake calculator, Drink reminders and timer, Progress tracking with history and graphs, Customizable cup sizes and multiple beverages, Motivational rewards and badges, HealthKit and Apple Watch integration

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $2.99 | per month |
| Pro Yearly | $19.99 | per year |
| Water Log & Reminder Plan 1yr | $39.99 | per year |
| Water Reminder Pro | $2.99 | one-time |
| Pro Lifetime | $29.99 | one-time |

**What reviewers like**

- 🚀 Easy to use
- 👍 Helpful reminders
- 💡 Customizable settings
- 🚀 Simple tracking
- 👍 Motivating

**What reviewers complain about**

- 🐛 Logging issues
- 💰 Paid features
- 🔍 Privacy concerns
- 🔍 Data tracking
- 🔍 Excessive ads

**Reported bugs**

- Incorrect water intake calculations
- Inconsistent data sync between devices
- Reminders not working as expected
- App crashes or freezes
- Unreliable logging of water intake

**Requested features**

- Custom water amount options
- More notification frequency options
- Integration with other health apps
- Ability to log other beverages
- Improved dark mode support


### 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 Water Tracker free?

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

### Is Flow free?

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

### Do Water Tracker or Flow have ads?

Neither Water Tracker nor Flow shows ads.

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

Water Tracker ships an update every 3 weeks, and Flow every 5 days. Most recently, Water Tracker was updated on November 6, 2026 and Flow on October 31, 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.*