# eTCH Sync Time vs Dual Flip Clock

The clearest difference is update cadence: Dual Flip Clock at every 10 days against eTCH Sync Time's monthly. eTCH Sync Time's advantage is iOS requirement (9.3 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

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

eTCH Sync Time ships an update monthly, Dual Flip Clock every 10 days. The most recent releases landed on September 25, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | eTCH Sync Time | Dual Flip Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/dual-flip-clock/id6766014702/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 10 days** |
| Monetization | — | Free |
| Size | 1 MB | 10 MB |
| Requires iOS | **9.3** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [GCtronic Sagl](https://appshunter.io/developer/619822096) | [路 林](https://appshunter.io/developer/1896152952) |

## What reviewers say

### eTCH Sync Time

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Dual Flip Clock

[App page](https://appshunter.io/ios/app/dual-flip-clock/id6766014702)

Transform an old phone into a stylish desktop clock with this app. Easily switch between time zones for different cities or schools, and enjoy automatic day and night modes for a comfortable viewing experience.

**Highlights:** Desktop clock conversion, Multiple city/school time zones, Vertical and horizontal layouts, Automatic Day/Night Modes, Customizable display

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

**In-app purchases:** none


## Frequently asked questions

### Is eTCH Sync Time free?

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

### Is Dual Flip Clock free?

Dual Flip Clock is free to download, with no in-app purchases.

### Do eTCH Sync Time or Dual Flip Clock have ads?

Neither eTCH Sync Time nor Dual Flip Clock shows ads.

### Which is updated more often, eTCH Sync Time or Dual Flip Clock?

eTCH Sync Time ships an update monthly, and Dual Flip Clock every 10 days. Most recently, eTCH Sync Time was updated on September 25, 2026 and Dual Flip Clock on September 18, 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.*