Comparison

iStopwatch vs UltraStop

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

Head to head
About

iStopwatch

Features
Read full description

A precision LCD-style stopwatch with lap tracking, volume key control, and customizable fonts. Whether you're timing a run, coaching a sport, or need a reliable counter for any task, iStopwatch delivers with style and accuracy. KEY FEATURES โ€ข LCD Display โ€” Authentic digital display with glowing digits, just like a real LCD stopwatch โ€ข Lap Tracking โ€” Record unlimited laps with fastest/slowest indicators โ€ข Volume Key Control โ€” Start, record, pause, and reset using your device's volume buttons โ€” no need to touch the screen โ€ข 6 Custom Fonts โ€” Choose from Digital-7, Orbitron, Share Tech Mono, VT323, Menlo, or SF Mono โ€ข 4 LCD Themes โ€” Switch between LCD Cyan, Green, Blue, or a dazzling Purple-Pink-Blue gradient โ€ข Haptic & Sound Feedback โ€” Feel and hear every action โ€ข Background Timing โ€” Keeps counting even when you switch apps โ€ข Copy Records โ€” Share your lap data instantly โ€ข Dark Mode โ€” Easy on the eyes, perfect for any lighting PERFECT FOR - Running and jogging - Swimming and cycling - Workout intervals - Cooking and baking - Lab experiments - Any timing task Download iStopwatch and time everything with precision.

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

iStopwatch2 screens
UltraStop2 screens

Verdict

The call

The clearest difference is in-app purchases: UltraStop at none against iStopwatch's 1. UltraStop also leads on ads (none vs shown) and device support (3 vs 1). iStopwatch's advantage is update cadence (monthly vs every 12 months). On price and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. iStopwatch sells 1 one-off in-app purchase. UltraStop asks for nothing beyond the download.

UpkeepUpdate frequency

iStopwatch ships an update monthly, UltraStop every 12 months. The most recent releases landed on October 1, 2026 and October 7, 2026 respectively.

Scorecard4 real differences ยท 2 level
iStopwatch versus UltraStop: the parameters behind the verdict, then further details
ParameteriStopwatchUltraStop
PriceFreeFree
Update frequencyMonthly โ€” betterEvery 12 months
AdsYesNo โ€” better
In-app purchasesYesNo โ€” better
DevicesiPhoneiPhone, iPad, iPod โ€” better
Requires iOS16.015.0 โ€” better
Further details โ€” not scored
Size9 MB22 MB
Age rating4+4+
Developerๆ™ฏ็‚ ้™ˆJUHWAN LEE

In-app purchases

1 purchases

iStopwatch

One-time1
  • Pro Version$1.99
None

UltraStop

No in-app purchases

Questions

Is iStopwatch free?
iStopwatch is free to download, with in-app purchases available.
Is UltraStop free?
UltraStop is free to download, with no in-app purchases.
Do iStopwatch or UltraStop have ads?
iStopwatch shows ads; UltraStop does not.
Which is updated more often, iStopwatch or UltraStop?
iStopwatch ships an update monthly, and UltraStop every 12 months. Most recently, iStopwatch was updated on October 1, 2026 and UltraStop on October 7, 2026.

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