# The Proof App vs Water AI

The clearest difference is ads: Water AI at none against The Proof App's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

The Proof App ships an update every 9 days, Water AI every 11 days. The most recent releases landed on October 8, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | The Proof App | Water AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/water-ai-hydration-tracker/id6749095112/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 9 days** | Every 11 days |
| Monetization | — | Free with in-app purchases |
| Size | 47 MB | 42 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Brian Doran](https://appshunter.io/developer/1809457266) | [James Agib](https://appshunter.io/developer/1633578976) |

## What reviewers say

### The Proof App

[App page](https://appshunter.io/ios/app/the-proof-app/id6747595947)

**Features:** macOS Compatibility

**In-app purchases:** none


### Water AI

[App page](https://appshunter.io/ios/app/water-ai-hydration-tracker/id6749095112)

This app helps you stay hydrated by creating a personalized plan based on your lifestyle. Simply log your drinks by taking a photo, and receive instant insights into their hydration value. It offers reminders and tools to make tracking simple, personal, and fun.

**Highlights:** Personalized hydration plan, Drink logging via photo, Instant hydration insights, Hydration reminders, Lifestyle-based tracking, Simple and fun interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is The Proof App free?

The Proof App is free to download, with no in-app purchases.

### Is Water AI free?

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

### Do The Proof App or Water AI have ads?

The Proof App shows ads; Water AI does not.

### Which is updated more often, The Proof App or Water AI?

The Proof App ships an update every 9 days, and Water AI every 11 days. Most recently, The Proof App was updated on October 8, 2026 and Water AI on October 24, 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.*