Comparison

RTD Light vs Dual Flip Clock

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

RTD Light

Features
Read full description

Millions of Colors, At Your Fingertips: - Use an intuitive color wheel to precisely pick any color you desire. - Access multiple popular color presets for instant ambiance changes with a single tap. Dynamic Modes, Vivid Effects: - Built-in dynamic light effects: smooth gradients, energetic strobes, rhythmic music sync, and more. - Customize the speed and brightness of each mode to create a unique visual experience. One-Tap Control, Ultimate Simplicity: - A clean and intuitive interface puts power, mode switching, and on/off control right at your fingertips. - Your favorite lighting scenes are automatically saved for one-tap activation next time.

About

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.

Highlights
  • Desktop clock conversion
  • Multiple city/school time zones
  • Vertical and horizontal layouts
  • Automatic Day/Night Modes
  • Customizable display
Features
Read full description

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

RTD Light3 screens
Dual Flip Clock4 screens

Verdict

The call

The clearest difference is update cadence: Dual Flip Clock at every 10 days against RTD Light's every 6 weeks. RTD Light's advantage is iOS requirement (15.0 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

RTD Light ships an update every 6 weeks, Dual Flip Clock every 10 days. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level
RTD Light versus Dual Flip Clock: the parameters behind the verdict, then further details
ParameterRTD LightDual Flip Clock
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 6 weeksEvery 10 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.0 — better17.0
Further details — not scored
Size107 MB18 MB
Age rating9+4+
DeveloperFoshan Lingchuang Future Information Technology Co., Ltd.路 林

In-app purchases

None

RTD Light

No in-app purchases

None

Dual Flip Clock

No in-app purchases

Questions

Is RTD Light free?
RTD Light 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 RTD Light or Dual Flip Clock have ads?
Neither RTD Light nor Dual Flip Clock shows ads.
Which is updated more often, RTD Light or Dual Flip Clock?
RTD Light ships an update every 6 weeks, and Dual Flip Clock every 10 days. Most recently, RTD Light was updated on October 21, 2026 and Dual Flip Clock on October 24, 2026.

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