StopTime vs ZeroIn
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
StopTime
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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 — 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.
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.
- 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
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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
Verdict
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
Both are free to download. ZeroIn sells 3 one-off in-app purchases. StopTime asks for nothing beyond the download.
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.
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.
| Parameter | StopTime | ZeroIn |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Every 5 days — better | Every 3 weeks |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 130 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | Arman Mkhitarian | Emre ALTUN |
In-app purchases
StopTime
No in-app purchases
ZeroIn
- Life Refill$1.99
- Remove Ads$3.99
- ZeroIn Pro$9.99









