# Note Calendar vs Bathyal

The clearest difference is in-app purchases: Note Calendar at none against Bathyal's 3. Bathyal's advantage is update cadence (every 10 days vs every 2 months) and device support (4 vs 1). On price and ads there is nothing between them.

Both are free to download. Bathyal sells 3 one-off in-app purchases. Note Calendar asks for nothing beyond the download.

Note Calendar ships an update every 2 months, Bathyal every 10 days. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Note Calendar | Bathyal |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 10 days** |
| Size | 19 MB | 4 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Berkay Sancar](https://appshunter.io/developer/1673046007) | [Stephen Zinn](https://appshunter.io/developer/1883747143) |

## What reviewers say

### Note Calendar

[App page](https://appshunter.io/ios/app/note-calendar-task-reminder/id1673046005)

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

**In-app purchases:** none


### Bathyal

[App page](https://appshunter.io/ios/app/bathyal-spiral-water-clock/id6779757057)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip Small | $1.99 | one-time |
| Drop: The Benefactor's Drop | $2.99 | one-time |
| Large: A Current | $9.99 | one-time |


## Frequently asked questions

### Is Note Calendar free?

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

### Is Bathyal free?

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

### Do Note Calendar or Bathyal have ads?

Neither Note Calendar nor Bathyal shows ads.

### Which is updated more often, Note Calendar or Bathyal?

Note Calendar ships an update every 2 months, and Bathyal every 10 days. Most recently, Note Calendar was updated on October 30, 2026 and Bathyal on October 24, 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.*