Comparison

StopTime vs Timer Challenge

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

Head to head
About

StopTime

Features
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Simple to learn. Impossible to master. How good is your sense of time? Start the stopwatch, feel the seconds, and stop it at exactly the right moment. No numbers, no hints โ€” just you and your internal clock. HOW IT WORKS Every game is 5 rounds. Hit the target time as precisely as you can. The smaller your total deviation, the higher your score. Milliseconds decide everything. PARTY MODE โ€” 2-4 PLAYERS, ONE PHONE Pass the phone around. Same target, blind rounds, no peeking. The most precise player takes the win. Perfect for parties, road trips, and settling arguments once and for all. 8 GAME MODES Each mode tests your time perception in a different way โ€” from relaxed practice to Pro modes that punish a single millisecond. COMPETE AND IMPROVE - Global leaderboard: see how your timing ranks worldwide - Personal stats and progress tracked round by round - Pro modes to unlock when normal stops being a challenge - One game takes under a minute โ€” play anywhere, anytime Nobody is good at this on the first try. That's the point. How accurate is your sense of time? Tap start and find out.

About

Timer Challenge

Features
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Are you ready to test your absolute split-second reflexes and precision? Welcome to PerfectStop, the ultimate high-speed reaction challenge! The concept is simple but incredibly challenging: a high-speed millisecond timer starts running, and your goal is to tap and stop it exactly on the target second (like 1.00s, 5.00s, or 10.00s) down to the exact millisecond! It is a game of pure focus, rhythm, and timing. Why you will love PerfectStop: โ€ข THRILLING CAMPAIGN STAGES Navigate through multiple solo levels designed to test your limits. Be prepared for dynamic speed shifts! In advanced levels, the digital timer disappears completely after a few seconds, forcing you to rely solely on your internal clock and rhythm to hit the perfect stop. โ€ข HEAD-TO-HEAD VERSUS MODE Compete against your friends on a single split-screen! Test your reflexes in real-time local multiplayer to see who possesses the sharpest focus and fastest reaction time. โ€ข STUNNING CYBER-NEON AESTHETICS Immerse yourself in a beautiful, futuristic cyberpunk visual theme. Enjoy pulsating neon lights, glowing target rings, dynamic animations, and satisfying haptic feedback that makes every perfect stop feel amazingly rewarding. โ€ข GO PREMIUM (ADS FREE) Instantly remove all banner and interstitial ads and unlock all single-player stages with a single, quick in-app purchase. Keep your focus uninterrupted! Put your timing and focus to the test. Can you hit a Perfect Stop? Download PerfectStop now and claim your crown as the timing master! --- โ€ข PRIVACY & TERMS Privacy Policy: https://shorturl.at/H93S1 Terms & Conditions: https://shorturl.at/wBTJM

Screenshots

StopTime4 screens
Timer Challenge4 screens

Verdict

The call

The clearest difference is in-app purchases: StopTime at none against Timer Challenge's 1. StopTime also leads on ads (none vs shown) and update cadence (every 5 days vs every 2 months). On price and device support 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. Timer Challenge sells 1 one-off in-app purchase. StopTime asks for nothing beyond the download.

UpkeepUpdate frequency

StopTime ships an update every 5 days, Timer Challenge every 2 months. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

Scorecard4 real differences ยท 2 level
StopTime versus Timer Challenge: the parameters behind the verdict, then further details
ParameterStopTimeTimer Challenge
PriceFreeFree
Update frequencyEvery 5 days โ€” betterEvery 2 months
AdsNo โ€” betterYes
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS13.0 โ€” better16.0
Further details โ€” not scored
Size130 MB15 MB
Age rating4+4+
DeveloperArman MkhitarianMUNEER SABLAL

In-app purchases

None

StopTime

No in-app purchases

1 purchases

Timer Challenge

One-time1
  • Remove Ads & Unlock All$0.99

Questions

Is StopTime free?
StopTime is free to download, with no in-app purchases.
Is Timer Challenge free?
Timer Challenge is free to download, with in-app purchases available.
Do StopTime or Timer Challenge have ads?
Timer Challenge shows ads; StopTime does not.
Which is updated more often, StopTime or Timer Challenge?
StopTime ships an update every 5 days, and Timer Challenge every 2 months. Most recently, StopTime was updated on October 6, 2026 and Timer Challenge on October 7, 2026.

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