# Thirrrsty vs Flow

The clearest difference is price: Thirrrsty at Free against Flow's $3.99. Flow's advantage is in-app purchases (none vs 1) and update cadence (every 5 days vs every 3 months). On ads, device support and iOS requirement there is nothing between them.

Thirrrsty is free to download; Flow costs $3.99 up front. Thirrrsty sells 1 one-off in-app purchase. Flow asks for nothing beyond the download.

Thirrrsty ships an update every 3 months, Flow every 5 days. The most recent releases landed on October 6, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Thirrrsty | Flow |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.5 (87 ratings)](https://appshunter.io/ios/app/thirrrsty/id1080031514/reviews)** | — |
| Number of ratings | **87** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 9 MB | 40 MB |
| Requires iOS | 17.0 | **16.2** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Abdul Aljebouri](https://appshunter.io/developer/583663300) | [LOKRIS](https://appshunter.io/developer/1399579866) |

## What reviewers say

### Thirrrsty

[App page](https://appshunter.io/ios/app/thirrrsty/id1080031514)

This app offers a simple and visually appealing method to monitor your daily water consumption. It allows for convenient logging, goal setting, and integrates with your phone's health data. Receive timely reminders and access quick logging options via widgets or voice commands.

**Highlights:** Set and track hydration goals, Schedule water intake reminders, Log water via notifications, Home Screen widget for quick access, Siri integration for voice logging, Health app synchronization, Watch app for wrist tracking

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Developer Tip | $1.99 | one-time |


### 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 Thirrrsty free?

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

### Is Flow free?

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

### Do Thirrrsty or Flow have ads?

Neither Thirrrsty nor Flow shows ads.

### Which is updated more often, Thirrrsty or Flow?

Thirrrsty ships an update every 3 months, and Flow every 5 days. Most recently, Thirrrsty was updated on October 6, 2026 and Flow on October 1, 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.*