# Hydration Tracker vs AI Calorie Tracker

The clearest difference is ads: AI Calorie Tracker at none against Hydration Tracker's shown. AI Calorie Tracker also leads on update cadence (every 2 days vs every 9 days) and review sentiment (100% vs 88%). On price, rating, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Hydration Tracker sells 5 in-app purchases, starting at $1.49 per 7 days and AI Calorie Tracker sells 3 in-app purchases, starting at $5.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for Hydration Tracker against 4.9 for AI Calorie Tracker. Both are backed by a comparable volume of ratings — 26 and 15 respectively. Written reviews are what separate them: 88% of Hydration Tracker's written reviews are positive against 100% of AI Calorie Tracker's.

Hydration Tracker ships an update every 9 days, AI Calorie Tracker every 2 days. Both last shipped on November 5, 2026.

## The numbers

| Metric | Hydration Tracker | AI Calorie Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (26 ratings)](https://appshunter.io/ios/app/hydration-tracker-liquid-cats/id6744845359/reviews) | **[4.9 (15 ratings)](https://appshunter.io/ios/app/ai-calorie-tracker-fitory/id6753204154/reviews)** |
| Number of ratings | **26** | 15 |
| Positive reviews | 87.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 9 days | **Every 2 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 34 MB | 77 MB |
| Requires iOS | 18.0 | **15.5** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Nikita Zhukov](https://appshunter.io/developer/974791842) | [Tetiana Kalchenko](https://appshunter.io/developer/1816280651) |

## What reviewers say

### Hydration Tracker

[App page](https://appshunter.io/ios/app/hydration-tracker-liquid-cats/id6744845359)

This gamified hydration tracker helps you build a healthy habit of drinking water regularly. It offers smart reminders, customizable goals based on your profile, and a collection of fun cat characters to keep you motivated. Track various beverages and view your progress with detailed logs and statistics.

**Highlights:** Gamified hydration tracking, Smart daily water reminders, Customizable goal calculator, Collection of cat characters, Log of 38 popular beverages, Detailed history and stats, Ad-free experience

**Features:** Apple Watch app

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $1.49 | per 7 days |
| Monthly | $2.99 | per month |
| Annual | $8.99 | per year |
| Cats friend | Free | one-time |
| Lifetime | $17.99 | one-time |


### AI Calorie Tracker

[App page](https://appshunter.io/ios/app/ai-calorie-tracker-fitory/id6753204154)

Effortlessly track your nutrition with an AI-powered food scanner and barcode reader. Get personalized calorie and macro targets based on your goals and activity level. Monitor progress with clear dashboards and insights to help you reach your health objectives.

**Highlights:** AI Meal Scanner, Barcode Scanner, Personalized Calorie Targets, Macro Tracking, Apple Health Sync, Progress Dashboards

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access | $5.99 | per 7 days |
| Offer 50% OFF | $24.99 | per year |
| Premium Access | $49.99 | per year |


## Frequently asked questions

### Is Hydration Tracker free?

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

### Is AI Calorie Tracker free?

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

### Which has better reviews, Hydration Tracker or AI Calorie Tracker?

AI Calorie Tracker is rated higher. Hydration Tracker averages 4.8 out of 5 from 26 ratings, while AI Calorie Tracker averages 4.9 from 15 ratings.

### Do Hydration Tracker or AI Calorie Tracker have ads?

Hydration Tracker shows ads; AI Calorie Tracker does not.

### Which is updated more often, Hydration Tracker or AI Calorie Tracker?

Hydration Tracker ships an update every 9 days, and AI Calorie Tracker every 2 days. Most recently, Hydration Tracker was updated on November 5, 2026 and AI Calorie Tracker on November 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*