# MillisecondTimer — All‑in‑one Millisecond timer > All-in-one millisecond precision timer, stopwatch, and clock. (iPhone/iPad app by WONJI HA.) - Source: https://appshunter.io/ios/app/millisecondtimer/id6462732415 (this page in markdown: same URL + `.md`) - Developer: [WONJI HA](https://appshunter.io/developer/1703308182) - Category: Utilities, Lifestyle - Price: Free with in-app purchases - Rating: 5.00/5 from 6 App Store ratings - Age rating: 4+ - Requires: iOS 15.6 · 30 MB - Languages: American English, Korean - Released: 2023-08-26 - Data updated: 2026-07-23 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/millisecondtimer/id6462732415/reviews.md ## What is MillisecondTimer? Millisecond Timer is an all‑in‑one app that lets you use a countdown timer, stopwatch, and clock with millisecond (0.001 second) precision. Millisecond Stopwatch records your time accurately down to the millisecond, and Millisecond Clock shows the current time with millisecond precision. When you first install the app, a simple tutorial appears automatically so you can learn how it works and start using it right away. Use Millisecond Timer and Millisecond Stopwatch in situations like these - Measuring workout intervals and exercise times that need accurate records (running, marathon training, etc.) - Everyday situations where you need a precise countdown - Events or games that require millisecond‑level countdowns - Timer challenge games with friends, such as “Who can stop closest to 2.785 seconds?” or for fair draws and random picks 【Millisecond Timer】 - Set timers in hours, minutes, seconds, and milliseconds. - Easily increase or decrease the time using the + and − buttons. - Press and hold the + or − button to quickly set the exact time you want. - Instantly reuse your recent timers from the Recent Timers list. - Tap the displayed time to type in a value faster than using buttons. - Get notified when the timer finishes, even if you’re using another app (background) or your device is locked. - If the timer is running and you switch to another app, it will keep counting and resume seamlessly when you return. 【Millisecond Stopwatch】 - Record times one by one with millisecond precision. 【Millisecond Clock】 - See the current time in real time, down to the millisecond. - Choose between 12‑hour and 24‑hour formats in Settings. - Enjoy a clean digital clock design with a digital‑style font. If you find a bug or have a feature request, go to Settings in the app and use “Send Bug Report & feedback” to contact the developer. 【Pro Version】 Pro is available as a monthly or yearly subscription, as well as a lifetime purchase. - Subscriptions are charged to your Apple ID. - You can manage or cancel your subscription at any time in your Apple Account settings. - If you do not cancel at least 24 hours before the next billing date, your subscription may renew automatically. - All subscription terms follow Apple’s App Store policies. • Terms of Use: https://comdori.tistory.com/179 • Privacy Policy: https://comdori.tistory.com/161 ## Key features - Millisecond precision timing - Countdown timer with custom intervals - Stopwatch for accurate interval recording - Real-time millisecond clock display - Background operation and notifications - Recent timers for quick reuse - Customizable 12/24 hour clock format ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | MillisecondTimer Pro Month Plan | $1.00 | per month | | MillisecondTimer Pro Annual Plan | $5.99 | per year | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | MillisecondTimer Pro Lifetime | $34.99 | one-time | ## Frequently asked questions about MillisecondTimer ### What is MillisecondTimer? MillisecondTimer is a utility app that offers a countdown timer, stopwatch, and clock, all with millisecond (0.001 second) precision. It's designed for situations requiring highly accurate timekeeping. ### Does MillisecondTimer have ads? Yes, MillisecondTimer contains advertisements. The app also offers a Pro version with subscription plans for an ad-free experience and additional features. ### What are the subscription options for MillisecondTimer Pro? MillisecondTimer Pro is available as a monthly subscription for $0.99, a yearly subscription for $5.99, or a lifetime purchase. Subscriptions are managed through your Apple Account settings. ### Can MillisecondTimer run in the background? Yes, MillisecondTimer can run timers in the background and will notify you when a timer finishes, even if you are using another app or your device is locked. It also resumes seamlessly when you return to the app. ### How accurate is the stopwatch in MillisecondTimer? The stopwatch in MillisecondTimer records times accurately down to the millisecond (0.001 second). This allows for extremely precise measurement of intervals and events. ### What devices is MillisecondTimer compatible with? MillisecondTimer is supported on iPhone and iPod devices. It is rated for ages 4 and up. ### How often is MillisecondTimer updated? The latest version of MillisecondTimer is 2.1.1, last updated on March 3, 2026. The app was initially released on August 26, 2023. ### How can I provide feedback or report a bug in MillisecondTimer? You can send bug reports and feedback directly to the developer through the 'Send Bug Report & feedback' option found in the Settings menu within the app. ## Version history (last 5 releases) ### 2.1.1 — 2026-03-03 ◆ MillisecondTimer Pro Now Available • Ad banners have been removed. It's time to focus on your timer and time management! • Quickly set up timers you've used before with Recent Timers! ◆ Millisecond Timer Updates ※ If the timer completion alert is delayed, go to iOS Settings → Notifications → Priority Notifications → MillisecondTimer turn off. The alert banner will appear instantly! • Fixed an issue where the completion banner notification would not appear correctly after editing a Recent Timer. We're committed to making this app even better! ### 2.1 — 2026-01-27 ◆ MillisecondTimer Pro Now Available • Ad banners have been removed. It's time to focus on your timer and time management! • Quickly set up timers you've used before with Recent Timers! ◆ Millisecond Timer Updates ※ If the timer completion alert is delayed, go to iOS Settings → Notifications → Priority Notifications → MillisecondTimer turn off. The alert banner will appear instantly! • Fixed a bug where the timer count could go below 0 seconds. • Long-press buttons to quickly set your timer. • Access previously used timers through Recent Timers. • Improved the number input method so that entering a value now sets the timer directly instead of adding to the existing time. • Fixed an issue where the timer would pause when switching apps with the app switcher. • Added 3D effects to buttons for a more realistic feel. ◆ Millisecond Clock Added • Check the current time down to the millisecond! • Supports 24‑hour time format. • Performance and stability have been improved. ◆ Other Improvements • Support for various email protocols when submitting inquiries • "Rate App" now directs to App Store reviews. • Fixed a bug where the "Start" button in the tutorial was displayed in Korean instead of English. • Open-source licenses are now listed in iOS Settings. We're committed to making this app even better! ### 2.0.1 — 2026-01-09 ◆ MillisecondTimer Pro Now Available • Ad banners have been removed. It's time to focus on your timer and time management! • Quickly set up timers you've used before with Recent Timers! ◆ Millisecond Timer Updates • Fixed a bug where the timer count could display negative values. • Long-press buttons to quickly set your timer • Access previously used timers through Recent Timers • Added 3D effects to buttons for a more realistic feel ◆ Millisecond Clock Added • Check the current time down to the millisecond! Now with 24-hour format support. ◆ Other Improvements • Support for various email protocols when submitting inquiries • "Rate App" now directs to App Store reviews. • Fixed a bug where the "Start" button in the tutorial was displayed in Korean instead of English. We're committed to making this app even better! ### 2.0 — 2026-01-07 ◆ MillisecondTimer Pro Now Available • Ad banners have been removed. It's time to focus on your timer and time management! • Quickly set up timers you've used before with Recent Timers! ◆ Millisecond Timer Updates • Fixed a bug where the timer count would go negative • Long-press buttons to quickly set your timer • Access previously used timers through Recent Timers • Added 3D effects to buttons for a more realistic feel ◆ Millisecond Clock Added • Check the current time down to the millisecond! Now with 24-hour format support. ◆ Other Improvements • Support for various email protocols when submitting inquiries • "Rate App" now directs to App Store reviews We're committed to making this app even better! ### 1.0.1 — 2023-09-04 • Added English translation for feedback • Usability improvements ## Apps similar to MillisecondTimer | App | Rating | Price | Category | | --- | --- | --- | --- | | [Stopwatch ( Timer )](https://appshunter.io/ios/app/stopwatch-timer/id914317985) | 5.0 (1) | Free | Utilities | | [Stopwatch & Countdown](https://appshunter.io/ios/app/stopwatch-and-countdown/id1569326633) | 3.8 (4) | Free | Utilities | | [Millisecond stopwatch & timer](https://appshunter.io/ios/app/millisecond-stopwatch-and-timer/id6744745649) | — | Free | Utilities | | [MultiTimer: Stopwatch + Timer](https://appshunter.io/ios/app/multitimer-stopwatch-plus-timer/id1435226668) | 4.8 (72) | Free | Utilities | | [Stopwatch°](https://appshunter.io/ios/app/stopwatch/id6449844733) | 4.8 (59) | Free | Utilities | | [Kitchen Timer - Simple Cooking](https://appshunter.io/ios/app/kitchen-timer-simple-cooking/id6471403964) | 4.5 (157) | Free | Utilities | --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-23.*