eTCH Sync Time vs Dual Flip Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
eTCH Sync Time
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eTCH is a new way to show the clock time...it's hard to explain, it's better to see it in action!
Dual Flip Clock
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.
- Desktop clock conversion
- Multiple city/school time zones
- Vertical and horizontal layouts
- Automatic Day/Night Modes
- Customizable display
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I'm in Beijing. My family is in Vancouver. I used to do the math on my fingers, or open the world clock twice. Now I turn the phone sideways onto the charging stand and both cities stand there side by side. I just look up. TWO CITIES, ONE SCREEN Two clocks, stacked or side by side, each on its own city's time. No more counting hours. FOUR LOOKS Flip, for the mechanical clack of a split-flap board. Glass, when you want it clean. City Day & Night, to see at a glance whether it's light over there. Single City, when you only care about one. WHAT'S THE WEATHER THERE Each clock carries the current conditions and temperature. Faster than asking "is it cold where you are?" IT DIMS WHEN IT GETS DARK THERE Night brightness follows the city on screen, not your phone. When it's night on their side, that half dims and the stars come out. Easy on the eyes at 3am. IT FINDS THE PLACE A built-in worldwide city database that also includes universities and high schools - search "Stanford University" and it's there. Anything missing is looked up online, and saved only if you pick it. Cities you use often float to the top. LOCK SCREEN AND HOME SCREEN WIDGETS Small, medium, large, extra large. The larger sizes show dates and weather for both cities at once. LANDSCAPE, ALWAYS ON The screen won't lock while the app is open - it's built to sit on a desk, a nightstand, a charging stand. Works in both landscape directions, so it's upright however you set it down. PRIVACY Location is optional. It's used only when you turn on GPS mode, to show the time and temperature where you are.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | eTCH Sync Time | Dual Flip Clock |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Monthly | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 9.3 — better | 17.0 |
| Further details — not scored | ||
| Size | 1 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | GCtronic Sagl | 路 林 |
In-app purchases
eTCH Sync Time
No in-app purchases
Dual Flip Clock
No in-app purchases





