Comparison

ZoneTime 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

ZoneTime

Easily compare timezones to schedule meetings and avoid calling people at inconvenient hours. The app features a widget for quick glances and a table to compare up to 20 locations, automatically adjusting for Daylight Saving Time.

Highlights
  • View overlapping timezone hours
  • Schedule meetings across timezones
  • Today Widget for quick time checks
  • Compare up to 20 locations
  • Color-coded 'OK to call' times
  • Automatic Daylight Saving Time adjustment
  • Create calendar events across timezones
Features
Read full description

ZoneTime offers a quick and easy way to view overlapping timezone hours, and setup meetings. ZoneTime can help you: * stop waking up your friends and family when you call them overseas. * catch your international colleagues while they're still in the office. * compare timezones between a flight's origin and destination. Included Features * ZoneTime Today Widget now allows you to quickly glance at times across your configured locations without needing to open the app, or unlock you phone. * An easy to use table to compare today's times for up to 20 locations at a time. * Choose from cities from around the globe * Color codes times based on whether it's 'OK' to call. * Automatically adjusts for Daylight Saving Time for each Location. * Edit and rearrange locations you want to compare timezones. * Compare timezones in landscape or portrait orientation. * Create an calendar event across multiple timezones

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

ZoneTime4 screens
Dual Flip Clock4 screens

Verdict

The call

The clearest difference is update cadence: Dual Flip Clock at every 10 days against ZoneTime's every 3 months. ZoneTime's advantage is iOS requirement (8.0 vs 17.0). On price, rating, review sentiment and ratings volume 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.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for ZoneTime against 5.0 for Dual Flip Clock. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

ZoneTime ships an update every 3 months, Dual Flip Clock every 10 days. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
ZoneTime versus Dual Flip Clock: the parameters behind the verdict, then further details
ParameterZoneTimeDual Flip Clock
PriceFreeFree
Rating5.0 (1 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings12 — better
Update frequencyEvery 3 monthsEvery 10 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS8.0 — better17.0
Further details — not scored
Size26 MB18 MB
Age rating4+4+
DeveloperGlen Tregoning路 林

Customer experience

ZoneTime

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Dual Flip Clock

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

ZoneTime

No in-app purchases

None

Dual Flip Clock

No in-app purchases

Questions

Is ZoneTime free?
ZoneTime 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.
Which has better reviews, ZoneTime or Dual Flip Clock?
ZoneTime and Dual Flip Clock are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do ZoneTime or Dual Flip Clock have ads?
Neither ZoneTime nor Dual Flip Clock shows ads.
Which is updated more often, ZoneTime or Dual Flip Clock?
ZoneTime ships an update every 3 months, and Dual Flip Clock every 10 days. Most recently, ZoneTime was updated on November 1, 2026 and Dual Flip Clock on October 31, 2026.

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