Comparison

iSimpleStopWatch vs UltraStop

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

Head to head

Precision timing made easy

Free

🔧 Utilities

No ratingsView app →

About

iSimpleStopWatch

Features

Read full description

Simple stopwatch or timer: - very easy to use - disabled sleep mode - designed for a long-term run - large font with screaming color will help you to see from far away - dark mode to save display - frame rate reduced to save energy consumption Free to use with Ads banner; required internet connection. Paid version will disable all ads, and no internet connection will be required.

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.

Screenshots

iSimpleStopWatch1 screens

UltraStop2 screens

Verdict

The call

The clearest difference is in-app purchases: UltraStop at none against iSimpleStopWatch's 1. UltraStop also leads on ads (none vs shown). iSimpleStopWatch's advantage is update cadence (every 3 months vs every 12 months) and iOS requirement (12.0 vs 15.0). On price and device support 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. iSimpleStopWatch sells 1 one-off in-app purchase. UltraStop asks for nothing beyond the download.

UpkeepUpdate frequency

iSimpleStopWatch ships an update every 3 months, UltraStop every 12 months. The most recent releases landed on September 18, 2026 and May 19, 2026 respectively.

Scorecard4 real differences · 2 level

iSimpleStopWatch versus UltraStop: the parameters behind the verdict, then further details
Parameter	iSimpleStopWatch	UltraStop
Price	Free	Free
Update frequency	Every 3 months — better	Every 12 months
Ads	Yes	No — better
In-app purchases	Yes	No — better
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	12.0 — better	15.0
Further details — not scored
Size	47 MB	22 MB
Age rating	17+	4+
Developer	BeWise s.r.o.	JUHWAN LEE

In-app purchases

1 purchases

iSimpleStopWatch

One-time1

No Ads$0.99

None

UltraStop

No in-app purchases

Questions

Is iSimpleStopWatch free?

iSimpleStopWatch is free to download, with in-app purchases available.

Is UltraStop free?

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

Do iSimpleStopWatch or UltraStop have ads?

iSimpleStopWatch shows ads; UltraStop does not.

Which is updated more often, iSimpleStopWatch or UltraStop?

iSimpleStopWatch ships an update every 3 months, and UltraStop every 12 months. Most recently, iSimpleStopWatch was updated on September 18, 2026 and UltraStop on May 19, 2026.