# 워터리움 vs Fasting Notebook

The clearest difference is ads: Fasting Notebook at none against 워터리움's shown. Fasting Notebook also leads on update cadence (daily vs every 2 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

워터리움 ships an update every 2 weeks, Fasting Notebook daily. The most recent releases landed on November 10, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 워터리움 | Fasting Notebook |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | **Daily** |
| Monetization | Free | — |
| Size | 78 MB | 29 MB |
| Requires iOS | **15.1** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [HYEKYUNG MOON](https://appshunter.io/developer/1888183128) | [Hyunjin Jang](https://appshunter.io/developer/6814767316) |

## What reviewers say

### 워터리움

[App page](https://appshunter.io/ios/app/id6789337096)

This app combines water drinking habit tracking with a virtual aquarium. Log your water intake to fill your aquarium, hatch eggs with pearls, and collect unique fish to create a personalized underwater world. Stay hydrated with cute reminders and enjoy mini-games while building a healthy habit.

**Highlights:** Log water intake to fill aquarium, Hatch eggs with pearls to collect fish, Decorate and feed fish, Aquarium grows with consistent use, Monthly habit calendar and streak tracking, Water drinking reminders, Mini-games and hidden events

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

**In-app purchases:** none


### Fasting Notebook

[App page](https://appshunter.io/ios/app/fasting-notebook/id6818532649)

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

**In-app purchases:** none


## Frequently asked questions

### Is 워터리움 free?

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

### Is Fasting Notebook free?

Fasting Notebook is free to download, with no in-app purchases.

### Do 워터리움 or Fasting Notebook have ads?

워터리움 shows ads; Fasting Notebook does not.

### Which is updated more often, 워터리움 or Fasting Notebook?

워터리움 ships an update every 2 weeks, and Fasting Notebook daily. Most recently, 워터리움 was updated on November 10, 2026 and Fasting Notebook on October 31, 2026.

---

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