# HydroAI vs Quit Caffeine

The clearest difference is update cadence: Quit Caffeine at every 4 days against HydroAI's every 3 weeks. HydroAI's advantage is iOS requirement (13.4 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. HydroAI sells 3 in-app purchases, starting at $9.99 per month and Quit Caffeine sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

HydroAI ships an update every 3 weeks, Quit Caffeine every 4 days. The most recent releases landed on October 4, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | HydroAI | Quit Caffeine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hydroai-hydration-tracker/id6676999718/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | Freemium | — |
| Size | 58 MB | 10 MB |
| Requires iOS | **13.4** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Syncd Software LLC](https://appshunter.io/developer/1767900025) | [Hicham Badri](https://appshunter.io/developer/1894507756) |

## What reviewers say

### HydroAI

[App page](https://appshunter.io/ios/app/hydroai-hydration-tracker/id6676999718)

Effortlessly track your daily water intake and receive personalized reminders to stay hydrated. Simply answer a few questions about your goals, snap a photo of your drink, and view insightful progress reports. Achieve a healthier, more vibrant you with simple hydration management.

**Highlights:** AI-powered hydration analysis, Drink photo recognition, Personalized hydration goals, Progress tracking and insights, Customizable reminders, Effortless daily tracking

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $9.99 | per month |
| Pro Yearly | $46.90 | per year |
| Pro Yearly | $59.99 | per year |


### Quit Caffeine

[App page](https://appshunter.io/ios/app/quit-caffeine-zerobrew/id6768466913)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $6.99 | per month |
| Yearly Subscription | $29.99 | per year |


## Frequently asked questions

### Is HydroAI free?

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

### Is Quit Caffeine free?

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

### Do HydroAI or Quit Caffeine have ads?

Neither HydroAI nor Quit Caffeine shows ads.

### Which is updated more often, HydroAI or Quit Caffeine?

HydroAI ships an update every 3 weeks, and Quit Caffeine every 4 days. Most recently, HydroAI was updated on October 4, 2026 and Quit Caffeine 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.*