Comparison

UltraStop vs Millisecond stopwatch & timer

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

Head to head

UltraStop

Precision timing made easy

Free

🔧 Utilities

No ratingsView app →

Millisecond stopwatch & timer

For study, sports, interval

Free

🔧 Utilities

★ 4.01 ratingsView app →

About

UltraStop

Features

Read full description

A high-performance stopwatch app designed for tasks requiring ultra-precise time measurement. It measures time down to milliseconds and microseconds with exceptional accuracy, making it perfect for experiments, sports, programming tests, and more. With an intuitive interface, anyone can effortlessly record precise timings.

About

Millisecond stopwatch & timer

This utility app offers both a stopwatch and a timer with millisecond precision. It includes smart presets, lap tracking, and customizable alerts. Ideal for precise timing in sports, studies, or experiments.

Highlights

Stopwatch and timer functionality
Millisecond visualization
Smart timer presets
Lap/split tracking
Dark mode
Vibration/sound alerts

Features

Read full description

[Key Features] - Dual features: Stopwatch + Timer - Millisecond visualization (00:00.00 format) - Smart timer presets (1min/5min/10min quick-set) - Lap/split tracking with comparative analysis - Dark mode & screen-always-on option - Vibration/sound alerts [Usecase] - Sports training & lap timing - Scientific experiments & lab use - Cooking/baking precision - Productivity time blocking

Screenshots

UltraStop2 screens

Millisecond stopwatch & timer4 screens

Verdict

The call

The clearest difference is ads: UltraStop at none against Millisecond stopwatch & timer's shown. Millisecond stopwatch & timer's advantage is update cadence (every 4 months vs every 12 months). On price, in-app purchases, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

UltraStop ships an update every 12 months, Millisecond stopwatch & timer every 4 months. The most recent releases landed on May 19, 2026 and September 5, 2026 respectively.

Scorecard2 real differences · 8 level

UltraStop versus Millisecond stopwatch & timer: the parameters behind the verdict, then further details
Parameter	UltraStop	Millisecond stopwatch & timer
Price	Free	Free
Rating	—	4.0 (1 ratings) — better
Positive reviews	—	50.0% of reviews
Number of ratings	—	1 — better
Update frequency	Every 12 months	Every 4 months — better
Ads	No — better	Yes
In-app purchases	No	No
Monetization	—	Ad-supported
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	15.0	15.0
Further details — not scored
Size	22 MB	38 MB
Age rating	4+	4+
Developer	JUHWAN LEE	Seulki Eom

In-app purchases

None

UltraStop

No in-app purchases

None

Millisecond stopwatch & timer

No in-app purchases

Questions

Is UltraStop free?

UltraStop is free to download, with no in-app purchases.

Is Millisecond stopwatch & timer free?

Millisecond stopwatch & timer is free to download, with no in-app purchases.

Do UltraStop or Millisecond stopwatch & timer have ads?

Millisecond stopwatch & timer shows ads; UltraStop does not.

Which is updated more often, UltraStop or Millisecond stopwatch & timer?

UltraStop ships an update every 12 months, and Millisecond stopwatch & timer every 4 months. Most recently, UltraStop was updated on May 19, 2026 and Millisecond stopwatch & timer on September 5, 2026.