# eTCH Sync Time vs Bathyal

The clearest difference is in-app purchases: eTCH Sync Time at none against Bathyal's 3. eTCH Sync Time also leads on iOS requirement (9.3 vs 16.0). Bathyal's advantage is update cadence (every 4 days vs monthly). On price, ads and device support there is nothing between them.

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

eTCH Sync Time ships an update monthly, Bathyal every 4 days. The most recent releases landed on September 9, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | eTCH Sync Time | Bathyal |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Size | 1 MB | 4 MB |
| Requires iOS | **9.3** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [GCtronic Sagl](https://appshunter.io/developer/619822096) | [Stephen Zinn](https://appshunter.io/developer/1883747143) |

## What reviewers say

### eTCH Sync Time

[App page](https://appshunter.io/ios/app/etch-sync-time/id1125886335)

**Features:** macOS Compatibility

**In-app purchases:** none


### Bathyal

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

**Features:** macOS Compatibility, 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 eTCH Sync Time free?

eTCH Sync Time is free to download, with no in-app purchases.

### Is Bathyal free?

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

### Do eTCH Sync Time or Bathyal have ads?

Neither eTCH Sync Time nor Bathyal shows ads.

### Which is updated more often, eTCH Sync Time or Bathyal?

eTCH Sync Time ships an update monthly, and Bathyal every 4 days. Most recently, eTCH Sync Time was updated on September 9, 2026 and Bathyal on September 19, 2026.

---

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