Comparison

Millisecond Clock vs MD Clock

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

MD Clock

A beautifully designed digital clock app offering a variety of themes and customization options. It supports dynamic widgets, StandBy mode, and multiple timers and alarms, enhancing your workspace and daily routines.

Highlights
  • 24 exquisite themes
  • Liquid Glass design adaptation
  • Customizable widgets
  • StandBy mode support
  • Multiple timers and alarms
  • Refined animation and sound effects
Features
Read full description

MD Clock is a crafted clock app to accompany you in studying, working, and life. 2022 Apple Design Award finalist. ◎ 24 exquisite themes, and more to come ◎ Fully adapted to the new Liquid Glass design—dynamic and luminous ◎ Rich widgets and custom APP logo to meet your personality ◎ Perfectly supports StandBy ◎ Widgets support clear and blurred backgrounds, which are more integrated with the desktop ◎ Support multiple timers, chimes and alarms ◎ Refined animation and sound effects, polish every detail carefully * Subscription payments will be charged to your iTunes account at confirmation of your purchase. * Subscriptions will automatically renew and payment will be charged to your iTunes account unless auto-renew is turned off at least 24 hours prior to the end of the current. Privacy Policy: https://miidii.super.site/miidii-tech/privacy-policy Terms Of Use: https://miidii.super.site/miidii-tech/terms-of-use

Screenshots

Millisecond Clock4 screens
MD Clock4 screens

Verdict

The call

The clearest difference is monetization model: Millisecond Clock at free with in-app purchases against MD Clock's subscription. Millisecond Clock also leads on review sentiment (73% vs 47%). MD Clock's advantage is ads (none vs shown) and update cadence (every 11 days vs every 6 months). On price, rating, 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. Millisecond Clock sells 3 one-off in-app purchases and MD Clock sells 14 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Millisecond Clock against 4.6 for MD Clock. That said, the two scores are not equally well evidenced: MD Clock has 6.6K ratings behind it against 131, so its average is the more settled of the two. Written reviews are what separate them: 73% of Millisecond Clock's written reviews are positive against 47% of MD Clock's.

UpkeepUpdate frequency

Millisecond Clock ships an update every 6 months, MD Clock every 11 days. The most recent releases landed on September 6, 2026 and September 23, 2026 respectively.

Scorecard5 real differences · 5 level
Millisecond Clock versus MD Clock: the parameters behind the verdict, then further details
ParameterMillisecond ClockMD Clock
PriceFreeFree
Rating4.7 (131 ratings) — better4.6 (6.6K ratings)
Positive reviews72.7% of reviews — better47.4% of reviews
Number of ratings1316.6K — better
Update frequencyEvery 6 monthsEvery 11 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS15.015.0
Further details — not scored
Size4 MB384 MB
Age rating4+4+
DeveloperChia-Chun HsiehMD Studio

Customer experience

Millisecond Clock

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

MD Clock

All ratings6,557 ratings
Positive88.5%
Neutral3.4%
Negative8.1%
Written reviews821 reviews
Positive47.4%
Neutral10.2%
Negative42.4%

Bugs and requests

Millisecond Clock

Not enough reviews yet to summarise bugs or requests.

MD Clock

Reported bugs

3 issues
  • Widgets not loading properly
  • Clock time inaccuracies
  • Subscription issues across devices

Requested features

4 requests
  • Add more free clock designs
  • Allow customization of widget backgrounds
  • Implement multi-timezone support
  • Integrate with Apple Music for alarm tones

In-app purchases

3 purchases

Millisecond Clock

One-time3
  • Remove Ads$0.99
  • Special Offer Package$2.99
  • Unlock Themes$3.99
14 purchases

MD Clock

Subscriptions6
  • MD Clock Premium (1 MONTH)$0.991 Month
  • MD Clock Premium$1.997 Days
  • MD Clock Premium (1 YEAR)$4.491 Year
Show 3 more
  • MD Clock Premium7 Days trial$4.491 Year
  • MD Clock Premium1 Year trial$4.491 Year
  • MD Clock Premium7 Days trial$9.991 Year
One-time8
  • Black white & grey$0.99
  • Wood$0.99
  • AllTools$4.99
Show 5 more
  • All Clocks$5.99
  • MD Clock Premium$8.99
  • MD Clock Premium$9.99
  • MD Clock Premium$12.99
  • MD Clock Premium$24.99

Questions

Is Millisecond Clock free?
Millisecond Clock is free to download, with in-app purchases available.
Is MD Clock free?
MD Clock is free to download, with in-app purchases available.
Which has better reviews, Millisecond Clock or MD Clock?
Millisecond Clock is rated higher. Millisecond Clock averages 4.7 out of 5 from 131 ratings, while MD Clock averages 4.6 from 6.6K ratings.
Do Millisecond Clock or MD Clock have ads?
Millisecond Clock shows ads; MD Clock does not.
Which is updated more often, Millisecond Clock or MD Clock?
Millisecond Clock ships an update every 6 months, and MD Clock every 11 days. Most recently, Millisecond Clock was updated on September 6, 2026 and MD Clock on September 23, 2026.

Other comparisons