Millisecond Clock vs chimingClock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
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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.
chimingClock
A simple standing clock app that always displays the correct time. It plays Westminster chimes every quarter hour, requiring minimal user interaction and customization.
- Always shows correct time
- Westminster chimes on the quarter hour
- Minimal user interaction
- No customization required
- Designed for simplicity
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Standing clock that always shows correct time, and every quarter of an hour plays Westminster chimes. This application is designed to have minimal user interaction -- it just works out of the box. Despite variety of different clocks available on the app store, which support all sort of features and customizations, it's not easy to find a clock which shows only time and requires minimal user interaction and customizations -- in which case, chimingClock is exactly what you are looking for.
Screenshots
Verdict
The clearest difference is rating: Millisecond Clock at 4.7 against chimingClock's 4.1. Millisecond Clock also leads on ratings volume (131 vs 9). chimingClock's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price, review sentiment, device support and iOS requirement 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. Millisecond Clock sells 3 one-off in-app purchases. chimingClock asks for nothing beyond the download.
Millisecond Clock holds the better App Store score, 4.7 against 4.1. That said, the two scores are not equally well evidenced: Millisecond Clock has 131 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 73% of Millisecond Clock's written reviews are positive against 71% of chimingClock's.
Millisecond Clock ships an update every 6 months, chimingClock weekly. The most recent releases landed on October 1, 2026 and September 25, 2026 respectively.
| Parameter | Millisecond Clock | chimingClock |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (131 ratings) — better | 4.1 (9 ratings) |
| Positive reviews | 72.7% of reviews — better | 71.4% of reviews |
| Number of ratings | 131 — better | 9 |
| Update frequency | Every 6 months | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 4 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Chia-Chun Hsieh | ECHOWAVES CORP. |
Customer experience
Millisecond Clock
chimingClock
In-app purchases
Millisecond Clock
- Remove Ads$0.99
- Special Offer Package$2.99
- Unlock Themes$3.99
chimingClock
No in-app purchases
Questions
Is Millisecond Clock free?
Is chimingClock free?
Which has better reviews, Millisecond Clock or chimingClock?
Do Millisecond Clock or chimingClock have ads?
Which is updated more often, Millisecond Clock or chimingClock?
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