# Water Tracker vs CaloriZen

The clearest difference is device support: CaloriZen at 4 against Water Tracker's 1. CaloriZen also leads on iOS requirement (15.0 vs 17.6). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Water Tracker sells 2 in-app purchases, starting at $3.99 per 7 days and CaloriZen sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Water Tracker ships an update weekly, CaloriZen every 11 days. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Water Tracker | CaloriZen |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/calorizen/id6759153459/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 11 days |
| Monetization | — | Freemium |
| Size | 14 MB | 89 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Roman Ventskus](https://appshunter.io/developer/1469818751) | [Philip Godwin](https://appshunter.io/developer/1848760006) |

## What reviewers say

### Water Tracker

[App page](https://appshunter.io/ios/app/water-tracker-reminder-drink/id6743679338)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $3.99 | per 7 days |
| Annual | $89.99 | per year |


### CaloriZen

[App page](https://appshunter.io/ios/app/calorizen/id6759153459)

Effortlessly track your nutrition and fitness with AI. Snap photos of meals for instant calorie and macro logging, scan barcodes, or import recipes. Get personalized coaching and AI-generated workouts to reach your health goals.

**Highlights:** AI meal photo scanning, Barcode nutrition scanning, Recipe import from videos, AI-powered workout generation, Personalized AI coaching, Apple Health integration

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CaloriZen Premium | $9.99 | per month |
| CaloriZen Premium | $59.99 | per year |


## Frequently asked questions

### Is Water Tracker free?

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

### Is CaloriZen free?

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

### Do Water Tracker or CaloriZen have ads?

Neither Water Tracker nor CaloriZen shows ads.

### Which is updated more often, Water Tracker or CaloriZen?

Water Tracker ships an update weekly, and CaloriZen every 11 days. Most recently, Water Tracker was updated on October 30, 2026 and CaloriZen on November 5, 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.*