Comparison

StartWatch vs MillisecondTimer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

StartWatch

This app allows you to start a stopwatch instantly and then convert it into a timer. You can run multiple timers and stopwatches simultaneously, with options to customize display and track past events. It offers advanced features like markers and live activities for efficient time management.

Highlights
  • Instant stopwatch start
  • Convert stopwatch to timer
  • Run multiple timers/stopwatches
  • Customize display units
  • History and undo functionality
  • Markers for elapsed time
  • Live Activities with Dynamic Island
Features
Read full description

Start the stopwatch instantly, then turn it into a timer. Most timers are inaccurate because it takes 5 to 30 seconds to set the timer while time slips away. With StartWatch, you start the timer like a stopwatch, then you can take as much time as you need to set the alarm. Features Include: Run multiple stopwatches and timers. Convert a stopwatch to a timer and back to a stopwatch. Stopwatch continues to count after the timer is finished. Set a timer based on the time the stopwatch began, or the current time. Change a timer without losing the start time. Customize how the StartWatch is displayed. For example you can choose to show in weeks, days, or years. History - Undo an accidentally stopped StartWatch or change the start time of any event. Markers - Mark a moment in time on a running StartWatch. View how much time has elapsed from the previous Marker. Icon Badges - View how many StartWatches are running at a glance. Live Activities with support for Dynamic Island on iPhone 14 Pro Watch Features: Complications for timers and stopwatches. Run timers and stopwatches in the background.

About

MillisecondTimer

This app provides highly accurate timing tools, including a countdown timer, stopwatch, and clock, all with millisecond precision. It's designed for precise measurements in workouts, games, and everyday situations, offering background operation and seamless switching between apps.

Highlights
  • 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
Features
Read full description

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

Screenshots

StartWatch4 screens
MillisecondTimer4 screens

Verdict

The call

The clearest difference is in-app purchases: StartWatch at none against MillisecondTimer's 3. StartWatch also leads on ads (none vs shown) and update cadence (every 6 days vs every 3 weeks). MillisecondTimer's advantage is rating (5.0 vs 4.7) and iOS requirement (15.6 vs 26.0). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. MillisecondTimer sells 3 in-app purchases, starting at $1.00 per month. StartWatch asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

MillisecondTimer holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: StartWatch has 49 ratings behind it against 6, so its average is the more settled of the two.

UpkeepUpdate frequency

StartWatch ships an update every 6 days, MillisecondTimer every 3 weeks. The most recent releases landed on October 12, 2026 and October 2, 2026 respectively.

Scorecard8 real differences · 2 level
StartWatch versus MillisecondTimer: the parameters behind the verdict, then further details
ParameterStartWatchMillisecondTimer
PriceFreeFree
Rating4.7 (49 ratings)5.0 (6 ratings) — better
Positive reviews85.7% of reviews—
Number of ratings49 — better6
Update frequencyEvery 6 days — betterEvery 3 weeks
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, Apple Watch, Vision Pro — betteriPhone, iPod
Requires iOS26.015.6 — better
Further details — not scored
Size19 MB30 MB
Age rating4+4+
DeveloperApostol & HallWONJI HA

Customer experience

StartWatch

All ratings49 ratings
Positive91.8%
Neutral2.0%
Negative6.1%
Written reviews28 reviews
Positive85.7%
Neutral0.0%
Negative14.3%

MillisecondTimer

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

StartWatch

No in-app purchases

3 purchases

MillisecondTimer

Subscriptions2
  • MillisecondTimer Pro Month Plan$1.001 Month
  • MillisecondTimer Pro Annual Plan$5.991 Year
One-time1
  • MillisecondTimer Pro Lifetime$34.99

Questions

Is StartWatch free?
StartWatch is free to download, with no in-app purchases.
Is MillisecondTimer free?
MillisecondTimer is free to download, with in-app purchases available.
Which has better reviews, StartWatch or MillisecondTimer?
MillisecondTimer is rated higher. StartWatch averages 4.7 out of 5 from 49 ratings, while MillisecondTimer averages 5.0 from 6 ratings.
Do StartWatch or MillisecondTimer have ads?
MillisecondTimer shows ads; StartWatch does not.
Which is updated more often, StartWatch or MillisecondTimer?
StartWatch ships an update every 6 days, and MillisecondTimer every 3 weeks. Most recently, StartWatch was updated on October 12, 2026 and MillisecondTimer on October 2, 2026.

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