# The Calorie Tracker vs Hydrabit

The clearest difference is ads: Hydrabit at none against The Calorie Tracker's shown. Hydrabit also leads on device support (3 vs 1). On price, update cadence, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. The Calorie Tracker sells 4 in-app purchases, starting at $9.99 per month and Hydrabit sells 3 in-app purchases, starting at $2.99 per year. Whichever you choose, the download price is not the number that matters.

The Calorie Tracker ships an update every 2 days, Hydrabit every 3 days. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | The Calorie Tracker | Hydrabit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (66 ratings)](https://appshunter.io/ios/app/the-calorie-tracker/id6761625880/reviews)** | — |
| Number of ratings | **66** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 days** | Every 3 days |
| Monetization | Free with in-app purchases | — |
| Size | 39 MB | 71 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Implicit Marketing INC](https://appshunter.io/developer/1627304848) | [Gunal M](https://appshunter.io/developer/6809313385) |

## What reviewers say

### The Calorie Tracker

[App page](https://appshunter.io/ios/app/the-calorie-tracker/id6761625880)

This app helps you track your calorie intake, manage intermittent fasting schedules, and monitor your daily habits. It calculates macros, syncs with health data, and offers a community for support. Personalized plans and progress tracking are also included.

**Highlights:** Calorie and macro tracking, Intermittent fasting timer, Automatic step and activity syncing, Weight and progress photo logging, Daily to-do list, Community feed, Personalized calorie plans

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Trial | $9.99 | per month |
| Monthly | $9.99 | per month |
| Annual Trial | $49.99 | per year |
| Annual | $49.99 | per year |


### Hydrabit

[App page](https://appshunter.io/ios/app/hydrabit-drink-water-tracker/id6809369645)

**Features:** macOS Compatibility, Apple Watch app, iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hydrabit Essential (Yearly) | $2.99 | per year |
| Hydrabit Essential Lifetime Offer | $4.99 | one-time |
| Hydrabit Essential (Lifetime) | $9.99 | one-time |


## Frequently asked questions

### Is The Calorie Tracker free?

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

### Is Hydrabit free?

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

### Do The Calorie Tracker or Hydrabit have ads?

The Calorie Tracker shows ads; Hydrabit does not.

### Which is updated more often, The Calorie Tracker or Hydrabit?

The Calorie Tracker ships an update every 2 days, and Hydrabit every 3 days. Most recently, The Calorie Tracker was updated on October 24, 2026 and Hydrabit on October 29, 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.*