Comparison

Millisecond Clock vs DimClock

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

Head to head
About

Millisecond Clock

This app displays the most accurate time available, down to the millisecond. It's useful for measuring network delays or video streaming lag by comparing displayed time differences.

Highlights
  • Millisecond precision time display
  • Accurate timekeeping for iPhone and iPad
  • Network delay measurement
  • Video streaming lag analysis
  • Free to download
Features
Read full description

Millisecond Clock shows the exact time down to 1/1000 of a second, accurate enough to measure real delay in cameras, video streams, and network connections. Point a camera at the screen and compare it to another display: the difference in milliseconds tells you exactly how much latency you are dealing with. Beyond precision, Millisecond Clock is a clock you can make your own. Every part of it, from color and font to position on screen, is yours to design. DESIGN YOUR CLOCK- 13 built-in color themes, or create unlimited custom themes with the full color picker - 30 fonts, from the classic digital LED look to elegant serif and rounded styles - Adjustable glow and shadow effects for extra depth - Drag the clock, date, and weekday anywhere on screen, and resize each one independently STAY ON TIME, YOUR WAY- 12-hour or 24-hour time, with an optional blinking colon - 9 date formats to match how you write dates - Show or hide the date and day of the week - Toggle the millisecond display on or off BUILT TO STAY ON SCREEN- Keeps your screen awake so the clock is always visible - A true universal app, designed for both iPhone and iPad Millisecond Clock is free to use, supported by ads. A one-time in-app purchase removes ads and unlocks every premium theme, no subscription required.

About

DimClock

This app provides a simple, dimmable clock with customizable text colors for the time, date, and seconds. It's designed for low energy consumption by reducing screen backlight brightness.

Highlights
  • Dimmable backlight
  • Customizable text colors
  • Low energy consumption
  • Displays time, date, and seconds
  • Simple interface
Features
Read full description

DimClock is a dimmable simple clock app that works with low energy consumption by reducing brightness of backlight of iPhone screen. You can customize the brightness of the backlight and the color of the date, time, and seconds text.

Screenshots

Millisecond Clock4 screens
DimClock4 screens

Verdict

The call

The clearest difference is in-app purchases: DimClock at none against Millisecond Clock's 3. DimClock also leads on ads (none vs shown) and update cadence (every 5 days vs every 6 months). Millisecond Clock's advantage is review sentiment (73% vs 50%). On price 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. Millisecond Clock sells 3 one-off in-app purchases. DimClock asks for nothing beyond the download.

UpkeepUpdate frequency

Millisecond Clock ships an update every 6 months, DimClock every 5 days. The most recent releases landed on October 14, 2026 and September 22, 2026 respectively.

Scorecard6 real differences · 4 level
Millisecond Clock versus DimClock: the parameters behind the verdict, then further details
ParameterMillisecond ClockDimClock
PriceFreeFree
Rating4.7 (131 ratings) — better—
Positive reviews72.7% of reviews — better50.0% of reviews
Number of ratings131 — better—
Update frequencyEvery 6 monthsEvery 5 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.09.3 — better
Further details — not scored
Size4 MB8 MB
Age rating4+4+
DeveloperChia-Chun HsiehKatsuhiko Noda

Customer experience

Millisecond Clock

All ratings131 ratings
Positive93.1%
Neutral2.3%
Negative4.6%
Written reviews11 reviews
Positive72.7%
Neutral18.2%
Negative9.1%

DimClock

Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

In-app purchases

3 purchases

Millisecond Clock

One-time3
  • Remove Ads$0.99
  • Special Offer Package$2.99
  • Unlock Themes$3.99
None

DimClock

No in-app purchases

Questions

Is Millisecond Clock free?
Millisecond Clock is free to download, with in-app purchases available.
Is DimClock free?
DimClock is free to download, with no in-app purchases.
Do Millisecond Clock or DimClock have ads?
Millisecond Clock shows ads; DimClock does not.
Which is updated more often, Millisecond Clock or DimClock?
Millisecond Clock ships an update every 6 months, and DimClock every 5 days. Most recently, Millisecond Clock was updated on October 14, 2026 and DimClock on September 22, 2026.

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