Comparison

Big Clock 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

Big Clock

Transform your device into a large, clear digital clock. Ideal for bedside tables, desks, or workouts, it offers an always-on display with customizable themes and brightness for easy readability in any environment.

Highlights
  • Fullscreen digital clock
  • Always-on display mode
  • Light and dark themes
  • Brightness control
  • Portrait and landscape support
  • Minimal design
Features
Read full description

Big Clock turns your iPhone or iPad into a clean, easy-to-read digital clock that stays visible when you need it most. Use it as a bedside night clock, desk clock, workout clock, or minimal always-on clock during work and study. Designed for simplicity, readability, and focus. FEATURES • Big fullscreen digital clock • Always-on display mode • Optional seconds display • Light and dark themes • Brightness control • Fullscreen mode • Works in portrait and landscape • One tap controls • Minimal and distraction-free design • Supports iPhone and iPad PERFECT FOR • Bedside nightstand clock • Desk setup clock • Kitchen clock • Study sessions • Work focus • Workout sessions • Low-light environments • Time visible from a distance Big Clock launches instantly and keeps the time clearly visible from across the room.

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

Big Clock4 screens
Dual Flip Clock4 screens

Verdict

The call

The clearest difference is in-app purchases: Dual Flip Clock at none against Big Clock's 7. Dual Flip Clock also leads on rating (5.0 vs 4.7). Big Clock's advantage is ratings volume (6 vs 2). On price, review sentiment, update cadence and ads 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. Big Clock sells 7 one-off in-app purchases. Dual Flip Clock asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Dual Flip Clock holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 6 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Big Clock ships an update weekly, Dual Flip Clock every 10 days. The most recent releases landed on October 31, 2026 and October 24, 2026 respectively.

Scorecard4 real differences · 6 level
Big Clock versus Dual Flip Clock: the parameters behind the verdict, then further details
ParameterBig ClockDual Flip Clock
PriceFreeFree
Rating4.7 (6 ratings)5.0 (2 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings6 — better2
Update frequencyWeekly — betterEvery 10 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS16.0 — better17.0
Further details — not scored
Size74 MB18 MB
Age rating4+4+
DeveloperNataliia Zarudna路 林

Customer experience

Big Clock

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 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

7 purchases

Big Clock

One-time7
  • Coffee Support$1.99
  • Premium$2.99
  • Premium + Coffee$4.99
Show 4 more
  • Coffee & Croissant Support$5.99
  • Premium + Coffee + Croissant$8.99
  • Big Support$12.99
  • Premium + Big Support$14.99
None

Dual Flip Clock

No in-app purchases

Questions

Is Big Clock free?
Big Clock is free to download, with in-app purchases available.
Is Dual Flip Clock free?
Dual Flip Clock is free to download, with no in-app purchases.
Which has better reviews, Big Clock or Dual Flip Clock?
Dual Flip Clock is rated higher. Big Clock averages 4.7 out of 5 from 6 ratings, while Dual Flip Clock averages 5.0 from 2 ratings.
Do Big Clock or Dual Flip Clock have ads?
Neither Big Clock nor Dual Flip Clock shows ads.
Which is updated more often, Big Clock or Dual Flip Clock?
Big Clock ships an update weekly, and Dual Flip Clock every 10 days. Most recently, Big Clock was updated on October 31, 2026 and Dual Flip Clock on October 24, 2026.

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