Digital Clock vs Millisecond Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Digital Clock
This app transforms your device into a stylish LED bedside clock with customizable skins and dynamic time displays. It offers alarm functionality, voice time broadcasts, and a countdown timer, perfect for your desk or nightstand.
- Display time in seconds
- Customizable clock skins
- Alarm with music selection
- Hourly voice broadcast
- Countdown timer
- Home and lock screen widgets
Read full descriptionHide full description
Transform your desk with a minimalist LED digital clock, standby display, and focus timer — designed for Dynamic Island, Lock Screen, and Home Screen widgets. - Live Second Precision: Real-time clock display with seconds across Dynamic Island, Standby Screen, Lock Screen, and Home Screen widgets. - Custom Clock Skins: Eye-catching LED digital clock designs, themes, and customizable bedside displays. - Flexible Display: Toggle between 12-hour/24-hour time formats and easily hide week and date displays. - Smart Alarms & Chimes: Custom alarm sounds, music library, and hourly voice time broadcasts. - Pomodoro Focus Timer: Stay focused on work and study with customizable break intervals. - Stopwatch & Countdown Timer: High-precision timer for workouts, cooking, productivity, and study. - Target Date & Event Countdown: Track important milestones, project deadlines, holidays, and event countdowns.
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.
- Millisecond precision time display
- Accurate timekeeping for iPhone and iPad
- Network delay measurement
- Video streaming lag analysis
- Free to download
Read full descriptionHide 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
Verdict
The clearest difference is update cadence: Digital Clock at fortnightly against Millisecond Clock's every 6 months. Digital Clock also leads on ratings volume (69K vs 131). Millisecond Clock's advantage is review sentiment (73% vs 63%). On price, rating, ads and in-app purchases 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
Both are free to download. Digital Clock sells 3 one-off in-app purchases and Millisecond Clock sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.6 for Digital Clock against 4.7 for Millisecond Clock. That said, the two scores are not equally well evidenced: Digital Clock has 69K ratings behind it against 131, so its average is the more settled of the two. Written reviews are what separate them: 63% of Digital Clock's written reviews are positive against 73% of Millisecond Clock's.
Digital Clock ships an update fortnightly, Millisecond Clock every 6 months. The most recent releases landed on September 25, 2026 and September 6, 2026 respectively.
| Parameter | Digital Clock | Millisecond Clock |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (69K ratings) | 4.7 (131 ratings) — better |
| Positive reviews | 63.0% of reviews | 72.7% of reviews — better |
| Number of ratings | 69K — better | 131 |
| Update frequency | Fortnightly — better | Every 6 months |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 80 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | 俊杰 阮 | Chia-Chun Hsieh |
Customer experience
Digital Clock
Millisecond Clock
Bugs and requests
Digital Clock
Reported bugs
6 issues- Alarm doesn't sound if device is in silent mode
- Alarm doesn't work
- Time display is wrong
- Widget doesn't show correct time
- App crashes frequently
Show 1 moreShow fewer
- Incompatible with older devices
Requested features
9 requests- Dark mode option
- More skins please ie: pixie (tube); RGB sliders
- Ability to input own music for alarm
- Vertical display
- Battery percentage and reminder
Show 4 moreShow fewer
- Ability to change alarm sounds
- Portrait mode
- Bigger clock display
- Transparent widget
Millisecond Clock
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Digital Clock
- All clock styles$0.99
- Remove Ads$0.99
- Pro Version$2.99
Millisecond Clock
- Remove Ads$0.99
- Special Offer Package$2.99
- Unlock Themes$3.99
Questions
Is Digital Clock free?
Is Millisecond Clock free?
Which has better reviews, Digital Clock or Millisecond Clock?
Do Digital Clock or Millisecond Clock have ads?
Which is updated more often, Digital Clock or Millisecond Clock?
Other comparisons















