Comparison

StopLight! Stop the Timer Game vs Stopwatch Challenge

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

Head to head
About

StopLight! Stop the Timer Game

Test your timing and precision in this challenging game where you stop a timer exactly on a target number. Compete solo, challenge friends in duels, or play a social deduction game as an imposter.

Highlights
  • Blind timer stopping challenge
  • Solo endless rounds
  • 1v1 duels (couch, bot, online)
  • Imposter social deduction mode
  • Customizable skins and clock faces
  • Game Center leaderboards and achievements
Read full description

STOP IT DEAD ON. You get a number — say 15:00:00. Press GO. The clock runs completely blind. Count the seconds in your head, then press STOP dead on the number. ±5ms is a PERFECT: confetti, screen shake, x10 points, full dopamine. That's the whole game. It's also the hardest thing you'll do today. SOLO Endless rounds, random targets from 1 to 15 seconds. Build CLEAN-or-better streaks. Chase your first PERFECT — then nine more (the 24K gold button waits at ten). 1V1 DUELS Same number, same nerve — closest average over 3 rounds takes the W. Ties go to sudden death. • COUCH — split screen, one phone, two thumbs • VS BOT — rookie, solid, or cracked practice bots • ONLINE CASUAL — quick matches worldwide • RANKED — RP on the line, protected by fair-play detection: matches with beyond-human precision are voided automatically and never move RP. • CHALLENGE LINKS — hit a monster score, send the receipt. Friends tap your link and run the exact same number. Bet they can't. IMPOSTER (3–6 PLAYERS) Everyone sees the target… except one of you. Run the clock one at a time — every time stays sealed until the vote — then vote out whoever's faking it. Play online (3–4 players) or pass one phone around the party. Ties let the imposter slide. MAKE IT YOURS Button skins (SLIME, LAVA, HOLO, GLITCH, more), LED clock faces (MOLTEN, CRYO, VAPORWAVE, more) and arena backdrops. Opponents see your equipped skin — that's the flex. Some things can't be bought: the 24K gold button (hit 10 PERFECTs), THE PERFECTIONIST clock (25,000 points, earned by playing) and the UNDEFEATED clock (15 online wins). GAME CENTER Leaderboards for ranked RP and best average, plus achievements to grind. Your internal clock is worse than you think. Prove us wrong. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Stopwatch Challenge

Features
Read full description

Stopwatch Challenge is a simple game of timing and nerve. Start the clock, trust your instincts when the display fades, and hit the buzzer as close to the target as you can. Choose a target from 3 to 15 seconds and play again instantly. Every attempt shows your exact time and percentage score, making a perfect stop satisfying and easy to understand. FEATURES • Precision timing measured to one hundredth of a second • A fading display that tests your internal clock • Targets from 3 to 15 seconds • Immediate scores and unlimited retries • Sound and haptic feedback • No accounts, advertisements, or data collection • Works completely offline How close can you get to 100%

Screenshots

StopLight! Stop the Timer Game4 screens
Stopwatch Challenge2 screens

Verdict

The call

The clearest difference is in-app purchases: Stopwatch Challenge at none against StopLight! Stop the Timer Game's 11. Stopwatch Challenge also leads on ads (none vs shown) and update cadence (daily vs every 6 days). On price, 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. StopLight! Stop the Timer Game sells 11 one-off in-app purchases. Stopwatch Challenge asks for nothing beyond the download.

UpkeepUpdate frequency

StopLight! Stop the Timer Game ships an update every 6 days, Stopwatch Challenge daily. The most recent releases landed on October 25, 2026 and October 26, 2026 respectively.

Scorecard3 real differences · 6 level
StopLight! Stop the Timer Game versus Stopwatch Challenge: the parameters behind the verdict, then further details
ParameterStopLight! Stop the Timer GameStopwatch Challenge
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 6 daysDaily — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.217.0 — better
Further details — not scored
Size20 MB11 MB
Age rating4+4+
DeveloperMoussa ZekakThibault Ducret

In-app purchases

11 purchases

StopLight! Stop the Timer Game

One-time11
  • GRAPE STATIC Backdrop$2.99
  • BLACKOUT Backdrop$2.99
  • Molten Clock$2.99
Show 8 more
  • Cryo Clock$2.99
  • DEEP FRIED SUNSET Backdrop$3.99
  • VAPORGRID Backdrop$4.99
  • Vaporwave Clock$4.99
  • Ghost Clock$4.99
  • GLITCH Button$7.99
  • Solid Gold Clock$7.99
  • THE GOAT Button$29.99
None

Stopwatch Challenge

No in-app purchases

Questions

Is StopLight! Stop the Timer Game free?
StopLight! Stop the Timer Game is free to download, with in-app purchases available.
Is Stopwatch Challenge free?
Stopwatch Challenge is free to download, with no in-app purchases.
Do StopLight! Stop the Timer Game or Stopwatch Challenge have ads?
StopLight! Stop the Timer Game shows ads; Stopwatch Challenge does not.
Which is updated more often, StopLight! Stop the Timer Game or Stopwatch Challenge?
StopLight! Stop the Timer Game ships an update every 6 days, and Stopwatch Challenge daily. Most recently, StopLight! Stop the Timer Game was updated on October 25, 2026 and Stopwatch Challenge on October 26, 2026.

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