Comparison

Flip clock 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

Flip clock

A digital clock app featuring a unique page-turning animation and customizable backgrounds. It includes white noise sounds, hourly chimes, and a timer for enhanced functionality. Personalize your display with various skins, colors, and animations.

Highlights
  • Page-turning digital clock animation
  • 123 White Noise Sounds
  • Customizable skins and colors
  • Hourly chime and timer functions
  • Charging animation
  • Widget support
Features
Read full description

Digital clock with page turning 1,23 White Noise Sounds 2,4 Flip Effects 3,4 Flip Sound Effects 4,11 Skins 5,Hourly Chime 6,Timer 7,Count Down 8,Widget 9,Customize Background 10,Customize Color 11,White Noise auto turn off 12,Daily Quote 13,Charging Animation 14,Show date/hide date 15,12 hours/24 hours 16,Display second hand/hide second hand 17,Turn on the sound/mute 18,Supports iPad and iPhone 19,Supports landscape and portrait SUBSCRIPTION PRICING AND TERMS This App can renew subscription automatically to help you unlock all content and features. Prices may vary from country to country and actual charges may be converted to your local currency based on the country of residence. Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s Account Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Read more about our terms and conditions here: Terms of service: https://shimo.im/docs/HdVYWPcryCcjvrgc/ Privacy policy: https://shimo.im/docs/HdVYWPcryCcjvrgc/ Email:From2019219@gmail.com

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

Flip clock4 screens
Millisecond Clock4 screens

Verdict

The call

The clearest difference is monetization model: Millisecond Clock at free with in-app purchases against Flip clock's subscription. Millisecond Clock also leads on review sentiment (73% vs 57%). Flip clock's advantage is ads (none vs shown) and update cadence (every 3 weeks 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. Flip clock sells 2 in-app purchases, starting at $5.49 per year and Millisecond Clock sells 3 one-off in-app purchases. 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 — 4.6 for Flip clock against 4.7 for Millisecond Clock. That said, the two scores are not equally well evidenced: Flip clock has 4.8K ratings behind it against 131, so its average is the more settled of the two. Written reviews are what separate them: 57% of Flip clock's written reviews are positive against 73% of Millisecond Clock's.

UpkeepUpdate frequency

Flip clock ships an update every 3 weeks, Millisecond Clock every 6 months. The most recent releases landed on September 23, 2026 and September 6, 2026 respectively.

Scorecard5 real differences · 5 level
Flip clock versus Millisecond Clock: the parameters behind the verdict, then further details
ParameterFlip clockMillisecond Clock
PriceFreeFree
Rating4.6 (4.8K ratings)4.7 (131 ratings) — better
Positive reviews57.0% of reviews72.7% of reviews — better
Number of ratings4.8K — better131
Update frequencyEvery 3 weeks — betterEvery 6 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size64 MB4 MB
Age rating4+4+
DeveloperBeijing Free Calculator Technology Co., Ltd.Chia-Chun Hsieh

Customer experience

Flip clock

All ratings4,823 ratings
Positive88.3%
Neutral3.8%
Negative7.9%
Written reviews393 reviews
Positive57.0%
Neutral10.7%
Negative32.3%

Millisecond Clock

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

Bugs and requests

Flip clock

Reported bugs

3 issues
  • Widget freezes or stops updating
  • Time display not syncing correctly
  • Subscription issues and lost purchases

Requested features

4 requests
  • Add alarm clock functionality
  • Allow customization of widget
  • Improve dark mode/night settings
  • Introduce more free features

Millisecond Clock

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Flip clock

Subscriptions1
  • Clock — annual subscription$5.491 Year
One-time1
  • Permanent purchase$3.99
3 purchases

Millisecond Clock

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

Questions

Is Flip clock free?
Flip clock is free to download, with in-app purchases available.
Is Millisecond Clock free?
Millisecond Clock is free to download, with in-app purchases available.
Which has better reviews, Flip clock or Millisecond Clock?
Millisecond Clock is rated higher. Flip clock averages 4.6 out of 5 from 4.8K ratings, while Millisecond Clock averages 4.7 from 131 ratings.
Do Flip clock or Millisecond Clock have ads?
Millisecond Clock shows ads; Flip clock does not.
Which is updated more often, Flip clock or Millisecond Clock?
Flip clock ships an update every 3 weeks, and Millisecond Clock every 6 months. Most recently, Flip clock was updated on September 23, 2026 and Millisecond Clock on September 6, 2026.

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