Apps by Chia-Chun Hsieh
Millisecond Clock app icon

Lifestyle

Millisecond Clock

Chia-Chun Hsieh

Free download 4.68 · 1 storefront · 130 ratings In-app purchases unconfirmed
Open on Apple

About this app

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.

Latest release

What’s New

Version 2.3.0 Aug 19, 2026

- Reduced battery and GPU usage from the clock's glowing digit effect, especially during long display sessions. - Fixed a bug where the ad banner could duplicate and use extra memory when returning to the main screen. - Smoother scrolling in the Themes and Date Format selection screens. - Updated the advertising SDK to the latest version for improved reliability. - General performance and stability improvements to the clock display. - Reduced unnecessary background processing for better overall efficiency.

Audience growth

Ratings growth

Steady
7-day gain +0
Ratings / day 0.0
30-day gain +0
US rating-count history
130 ratings
130 Aug 20, 2026 · 130 ratings Aug 20, 2026

Baseline captured. Growth appears after the crawler observes a changed rating count.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

Price tracking

Price intelligence

1 captured event
Current Free
Historical low Free
Paid → free
Price history
Current Free
Free Aug 20, 2026 · Free Aug 20, 2026

First snapshot captured. The trend line starts after the next crawler price observation.

  1. First observed Aug 20, 2026 · 8:02 AM Free

Screenshots

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