# Cal AI vs Hydrate Gate

The clearest difference is in-app purchases: Hydrate Gate at none against Cal AI's 26. Hydrate Gate also leads on ads (none vs shown). Cal AI's advantage is ratings volume (373K vs 1) and chart position (#7 vs unranked). On price, rating, device support and iOS requirement there is nothing between them.

Both are free to download. Cal AI sells 20 in-app purchases, starting at $2.99 per 7 days. Hydrate Gate asks for nothing beyond the download.

Hydrate Gate holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Cal AI has 373K ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | Cal AI | Hydrate Gate |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (373K ratings)](https://appshunter.io/ios/app/cal-ai-calorie-tracker/id6480417616/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hydrate-gate/id6759878755/reviews)** |
| Number of ratings | **373K** | 1 |
| Positive reviews | 32.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Weekly | — |
| Monetization | Freemium | **Free** |
| Best chart rank | **#7** | — |
| Size | 319 MB | 2 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Viral Development LLC](https://appshunter.io/developer/1738939499) | [Brendan Pinder](https://appshunter.io/developer/1859993716) |

## What reviewers say

### Cal AI

[App page](https://appshunter.io/ios/app/cal-ai-calorie-tracker/id6480417616)

**Currently charting:** #7 Top Free · Health & Fitness, #11 Top Grossing · Health & Fitness (US App Store)

This app helps you achieve your fitness goals by tracking your calorie and macronutrient intake. Simply answer lifestyle questions to create a personalized plan, then snap photos of your meals for an instant nutritional breakdown. It aims to simplify dieting and empower users with the tools and information needed to succeed.

**Highlights:** Personalized lifestyle plan creation, Meal photo nutritional analysis, Calorie and macro tracking, Dietary goal support, User-friendly interface

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

**In-app purchases (20)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited | $2.99 | per 7 days |
| Unlimited | $5.99 | per month |
| Unlimited | $5.99 | per month |
| Unlimited | $6.99 | per 7 days |
| Unlimited | $7.99 | per month |
| Unlimited | $9.99 | per month |
| Unlimited | $9.99 | per month |
| Unlimited | $9.99 | per month |
| Unlimited | $14.99 | per month |
| Unlimited | $14.99 | per month |
| Unlimited | $19.99 | per year |
| Unlimited | $19.99 | per year |
| Unlimited Plan | $19.99 | per year |
| Unlimited | $29.99 | per year |
| Unlimited | $29.99 | per year |
| Unlimited | $29.99 | per year |
| Cal AI Family Plan | $59.99 | per year |
| Unlimited | $69.99 | per year |
| Unlimited | $89.99 | per year |
| Streak Restore | $0.99 | one-time |

**What reviewers like**

- 🚀 Convenient and easy to use
- 💡 Innovative AI-powered calorie tracking
- 👍 Helps with weight loss/gain goals
- 🚀 Fast and efficient
- 👍 Affordable subscription

**What reviewers complain about**

- 🐛 Inaccurate calorie/macro calculations
- 🐛 Inconsistent performance
- 🐛 Limited food database
- 🔒 Lack of free trial
- 🔒 Paywall to access full features

**Reported bugs**

- Freezing/crashing issues
- Incorrect data entry and logging
- Syncing problems across devices
- Unreliable barcode scanning

**Requested features**

- Ability to manually adjust portion sizes
- Integration with fitness trackers
- Detailed macro and nutrient breakdowns
- Saved meal/recipe functionality
- More customization options


### Hydrate Gate

[App page](https://appshunter.io/ios/app/hydrate-gate/id6759878755)

This app encourages healthier hydration habits by linking water intake to app access. Set daily goals and temporarily restrict apps, earning back usage by logging water. It promotes mindful device use and improved well-being.

**Highlights:** Set daily water intake goals, Temporarily restrict app access, Log water intake to earn app access, Promotes mindful device usage, Improves self-discipline and well-being

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

**In-app purchases:** none


## Frequently asked questions

### Is Cal AI free?

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

### Is Hydrate Gate free?

Hydrate Gate is free to download, with no in-app purchases.

### Which has better reviews, Cal AI or Hydrate Gate?

Hydrate Gate is rated higher. Cal AI averages 4.8 out of 5 from 373K ratings, while Hydrate Gate averages 5.0 from 1 ratings.

### Do Cal AI or Hydrate Gate have ads?

Cal AI shows ads; Hydrate Gate does not.

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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.*