Comparison

Timer Challenge vs ZeroIn

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

Head to head
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: • 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. • 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. • 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. • 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! --- • PRIVACY & TERMS Privacy Policy: https://shorturl.at/H93S1 Terms & Conditions: https://shorturl.at/wBTJM

About

ZeroIn

Features
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ZeroIn is built on pure timing: easy to learn, hard to master. The clock runs; your only job is to stop it exactly on target. The closer you get, the more stars you earn. 318 LEVELS, RISING DIFFICULTY Levels were redesigned from scratch. No dead time between rounds — every phase introduces a new mechanic. THREE GAME TYPES • Math — the target time is the answer to a problem. If it's 3 Ɨ 2, stop the clock at 6.00. • Time estimation — the clock is hidden; only your inner sense of time. • Vanishing number — digits show for two seconds, then fade away. ONLINE TABLES • Real-time races with up to 12 players • Invite a friend with a link — they land straight at your table • Empty lobby? Start against bots right away, no waiting • Rematches, trophies and rankings SEASONS A fresh ranking every month. At the end of the month the top three get an exclusive frame and a full season of Pro perks. START BUTTONS Unlock new START buttons with the stars you collect: prism, magma, black hole, clockwork and more. Your pick stays with you through every game. LIVES AND REWARDS Lives refill over time. Collect stars to earn bonus lives, watch a rewarded ad, or go unlimited with ZeroIn Pro. ZeroIn Pro: no ads, unlimited lives, an exclusive frame and every button unlocked.

Screenshots

Timer Challenge4 screens
ZeroIn4 screens

Verdict

The call

The clearest difference is update cadence: ZeroIn at every 5 days against Timer Challenge's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Timer Challenge sells 1 one-off in-app purchase and ZeroIn sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Timer Challenge ships an update every 2 months, ZeroIn every 5 days. The most recent releases landed on September 5, 2026 and September 17, 2026 respectively.

Scorecard1 real difference Ā· 5 level
Timer Challenge versus ZeroIn: the parameters behind the verdict, then further details
ParameterTimer ChallengeZeroIn
PriceFreeFree
Update frequencyEvery 2 monthsEvery 5 days — better
AdsYesYes
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.015.0 — better
Further details — not scored
Size15 MB53 MB
Age rating4+4+
DeveloperMUNEER SABLALEmre ALTUN

In-app purchases

1 purchases

Timer Challenge

One-time1
  • Remove Ads & Unlock All$0.99
3 purchases

ZeroIn

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

Questions

Is Timer Challenge free?
Timer Challenge is free to download, with in-app purchases available.
Is ZeroIn free?
ZeroIn is free to download, with in-app purchases available.
Do Timer Challenge or ZeroIn have ads?
Both Timer Challenge and ZeroIn show ads.
Which is updated more often, Timer Challenge or ZeroIn?
Timer Challenge ships an update every 2 months, and ZeroIn every 5 days. Most recently, Timer Challenge was updated on September 5, 2026 and ZeroIn on September 17, 2026.

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