Millisecond Clock vs DimClock
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.
DimClock
This app provides a simple, dimmable clock with customizable text colors for the time, date, and seconds. It's designed for low energy consumption by reducing screen backlight brightness.
- Dimmable backlight
- Customizable text colors
- Low energy consumption
- Displays time, date, and seconds
- Simple interface
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DimClock is a dimmable simple clock app that works with low energy consumption by reducing brightness of backlight of iPhone screen. You can customize the brightness of the backlight and the color of the date, time, and seconds text.
Screenshots
Verdict
The clearest difference is in-app purchases: DimClock at none against Millisecond Clock's 3. DimClock also leads on ads (none vs shown) and update cadence (every 5 days vs every 6 months). Millisecond Clock's advantage is review sentiment (73% vs 50%). 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
Both are free to download. Millisecond Clock sells 3 one-off in-app purchases. DimClock asks for nothing beyond the download.
Millisecond Clock ships an update every 6 months, DimClock every 5 days. The most recent releases landed on October 14, 2026 and September 22, 2026 respectively.
| Parameter | Millisecond Clock | DimClock |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (131 ratings) — better | — |
| Positive reviews | 72.7% of reviews — better | 50.0% of reviews |
| Number of ratings | 131 — better | — |
| Update frequency | Every 6 months | Every 5 days — 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 | 9.3 — better |
| Further details — not scored | ||
| Size | 4 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Chia-Chun Hsieh | Katsuhiko Noda |
Customer experience
Millisecond Clock
DimClock
In-app purchases
Millisecond Clock
- Remove Ads$0.99
- Special Offer Package$2.99
- Unlock Themes$3.99
DimClock
No in-app purchases
Questions
Is Millisecond Clock free?
Is DimClock free?
Do Millisecond Clock or DimClock have ads?
Which is updated more often, Millisecond Clock or DimClock?
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