Comparison

SJI 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

Millisecond stopwatch & timer

For study, sports, interval

Free

🔧 Utilities

★ 4.01 ratingsView app →

About

SJI

Features

Read full description

If the user has a normal functioning UWB Tag, the app can connect with the tag to obtain the distance, azimuth, and elevation between the tag and the connected phone

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

SJI4 screens

Millisecond stopwatch & timer4 screens

Verdict

The call

The clearest difference is ads: SJI at none against Millisecond stopwatch & timer's shown. SJI also leads on update cadence (every 2 weeks vs every 4 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

SJI ships an update every 2 weeks, Millisecond stopwatch & timer every 4 months. The most recent releases landed on September 10, 2026 and September 5, 2026 respectively.

Scorecard2 real differences · 8 level

SJI versus Millisecond stopwatch & timer: the parameters behind the verdict, then further details
Parameter	SJI	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 2 weeks — better	Every 4 months
Ads	No — better	Yes
In-app purchases	No	No
Monetization	—	Ad-supported
Devices	iPhone, iPod	iPhone, iPad, iPod — better
Requires iOS	15.0	15.0
Further details — not scored
Size	1 MB	38 MB
Age rating	4+	4+
Developer	SJI Co.,Ltd	Seulki Eom

In-app purchases

None

SJI

No in-app purchases

None

Millisecond stopwatch & timer

No in-app purchases

Questions

Is SJI free?

SJI 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 SJI or Millisecond stopwatch & timer have ads?

Millisecond stopwatch & timer shows ads; SJI does not.

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

SJI ships an update every 2 weeks, and Millisecond stopwatch & timer every 4 months. Most recently, SJI was updated on September 10, 2026 and Millisecond stopwatch & timer on September 5, 2026.