Comparison

bnClock vs Millisecond Clock

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

Head to head
About

bnClock

This app displays the time with exceptionally large numbers, ideal for nighttime viewing or as a travel alarm. It also offers current weather information and customizable alarm sounds, including music from your library. Personalize your experience with custom background colors or photos.

Highlights
  • Extra-large number display
  • Built-in alarm clock
  • Current weather and forecast
  • Customizable alarm sounds
  • Photo or slideshow backgrounds
  • Customizable background colors
Features
Read full description

Do you ever have trouble reading the clock in the middle of the night? bnClock (big numbers clock) provides the largest numbers your iPhone or iPad will allow. Great to use as travel alarm clock. Also a great use for an old iPhone or iPad. bnClock displays the current weather conditions and the forecast based on your current location. If you prefer, choose a particular location for the forecast. Or, turn off the weather display. Choose a built-in alarm sound, or a song from your music library to use for the alarms. Now with custom background colors, or, use a photograph or slide show as a background.

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.

Screenshots

bnClock4 screens
Millisecond Clock4 screens

Verdict

The call

The clearest difference is rating: Millisecond Clock at 4.7 against bnClock's 3.9. Millisecond Clock also leads on review sentiment (73% vs 55%) and ratings volume (131 vs 35). bnClock's advantage is in-app purchases (none vs 3) and ads (none vs shown). 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. bnClock asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Millisecond Clock holds the better App Store score, 4.7 against 3.9. Both are backed by a comparable volume of ratings — 35 and 131 respectively. Written reviews point the same way: 55% of bnClock's written reviews are positive against 73% of Millisecond Clock's.

UpkeepUpdate frequency

bnClock ships an update every 2 months, Millisecond Clock every 6 months. The most recent releases landed on September 28, 2026 and September 6, 2026 respectively.

Scorecard8 real differences · 2 level
bnClock versus Millisecond Clock: the parameters behind the verdict, then further details
ParameterbnClockMillisecond Clock
PriceFreeFree
Rating3.9 (35 ratings)4.7 (131 ratings) — better
Positive reviews55.2% of reviews72.7% of reviews — better
Number of ratings35131 — better
Update frequencyEvery 2 months — betterEvery 6 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size16 MB4 MB
Age rating4+4+
DeveloperJim CalvinChia-Chun Hsieh

Customer experience

bnClock

All ratings35 ratings
Positive68.6%
Neutral14.3%
Negative17.1%
Written reviews29 reviews
Positive55.2%
Neutral20.7%
Negative24.1%

Millisecond Clock

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

In-app purchases

None

bnClock

No in-app purchases

3 purchases

Millisecond Clock

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

Questions

Is bnClock free?
bnClock is free to download, with no in-app purchases.
Is Millisecond Clock free?
Millisecond Clock is free to download, with in-app purchases available.
Which has better reviews, bnClock or Millisecond Clock?
Millisecond Clock is rated higher. bnClock averages 3.9 out of 5 from 35 ratings, while Millisecond Clock averages 4.7 from 131 ratings.
Do bnClock or Millisecond Clock have ads?
Millisecond Clock shows ads; bnClock does not.
Which is updated more often, bnClock or Millisecond Clock?
bnClock ships an update every 2 months, and Millisecond Clock every 6 months. Most recently, bnClock was updated on September 28, 2026 and Millisecond Clock on September 6, 2026.

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