Comparison

StopTime vs ZeroIn

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

Head to head
About

StopTime

Features
Read full description

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 — 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 — 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 — 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 — 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

ZeroIn

A reflex game where players stop a timer precisely on target, featuring various timing modes and challenges. Compete with others online or test your skills through hundreds of levels. Boosters and daily rewards help you progress.

Highlights
  • Stopwatch timing challenges
  • Visible, vanishing, and blind timing modes
  • Math and time estimation targets
  • Online reflex duels with leaderboards
  • Monthly seasons with rewards
  • Boosters for assistance
  • Daily rewards and streaks
Features
Read full description

ZeroIn is a stopwatch reflex game: the clock runs and you stop it exactly on target. Sounds easy — until the timer disappears. 300+ LEVELS • Visible clock, vibration beats, fully blind timing and countdowns • Vanishing digits that show for two seconds, then fade away • Math targets: if it's 3 × 2, stop the clock at 6.00 • Time estimation: feel 7.35 seconds without seeing a single digit TEST YOUR REACTION TIME Every stop is measured in milliseconds. Earn up to three stars, chase gold (under 10 ms) and unlock new START buttons with your points. ONLINE REFLEX DUELS • Real-time tables with up to 12 players • Invite friends with a link and rematch in seconds • Climb the global ranking and the monthly season MONTHLY SEASONS The top three of every season win a champion frame and a full month of ZeroIn Pro. BOOSTERS Second Chance, Slow-Mo, Reveal Timer and Second Buzz help you through the toughest levels. DAILY REWARDS Come back every day for lives, boosters and bonus stars — and save your streak if you miss a day. ZeroIn Pro: no ads, unlimited lives, double star points and the Black Hole button.

Screenshots

StopTime4 screens
ZeroIn4 screens

Verdict

The call

The clearest difference is in-app purchases: StopTime at none against ZeroIn's 3. StopTime also leads on ads (none vs shown) and update cadence (every 5 days vs every 3 weeks). On price, rating, ratings volume 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. ZeroIn sells 3 one-off in-app purchases. StopTime asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for StopTime against 5.0 for ZeroIn. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

StopTime ships an update every 5 days, ZeroIn every 3 weeks. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 5 level
StopTime versus ZeroIn: the parameters behind the verdict, then further details
ParameterStopTimeZeroIn
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Number of ratings11
Update frequencyEvery 5 days — betterEvery 3 weeks
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size130 MB54 MB
Age rating4+4+
DeveloperArman MkhitarianEmre ALTUN

In-app purchases

None

StopTime

No in-app purchases

3 purchases

ZeroIn

One-time3
  • Life Refill$1.99
  • Remove Ads$3.99
  • ZeroIn Pro$9.99

Questions

Is StopTime free?
StopTime is free to download, with no in-app purchases.
Is ZeroIn free?
ZeroIn is free to download, with in-app purchases available.
Which has better reviews, StopTime or ZeroIn?
StopTime and ZeroIn are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do StopTime or ZeroIn have ads?
ZeroIn shows ads; StopTime does not.
Which is updated more often, StopTime or ZeroIn?
StopTime ships an update every 5 days, and ZeroIn every 3 weeks. Most recently, StopTime was updated on October 31, 2026 and ZeroIn on October 25, 2026.

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