Comparison

Inner Clock Master vs Stop the Timer

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

Head to head
About

Inner Clock Master

Features
Read full description

"Inner Clock Master" is a simple yet addictive timing game that tests your sense of time. Measure the displayed target seconds using only your internal clock, without watching the timer. ◆ Simple & Intuitive Controls Tap to start Tap again when you think the target time has passed Results displayed instantly ◆ Precise Judgment System Measures error down to 0.01 seconds Perfect judgment within 0.01s error Tiered scoring system ◆ Deep Gameplay Chain successes to stack multipliers Track your best score and aim to beat it Review round history to see your progress ◆ Engaging Mechanics LIMIT System: Large errors deal damage Game over when LIMIT reaches zero Continue by watching ads ◆ Beautiful Design Elegant gradient background Clear score display Smooth animations Perfect For ・Looking for a great time-killer game ・Love simple but deep games ・Want to test your time perception ・Training concentration skills ・Enjoy chasing high scores Scoring System Base points determined by error: 0.00s: 100 points (Perfect!) Within 0.05s: 80 points Within 0.10s: 60 points Within 0.30s: 40 points Multipliers increase with consecutive successes: Perfect: ×1.5 Within 0.05s: ×1.3 Within 0.10s: ×1.2 Within 0.30s: ×1.1 Multipliers stack, so the more consecutive successes, the higher your potential score! LIMIT System Take 50 damage per second of error. Game over when LIMIT (HP) reaches zero. Maintain accurate timing to survive as long as possible! Free to Play Completely free to play. Continue your game by watching ads. Download now and test the precision of your internal clock!

About

Stop the Timer

Features
Read full description

Think you can feel time without seeing it? Your goal is simple: stop the hidden timer as close as possible to the target time. Count the seconds in your head, tap STOP, and discover how accurate your timing really is. PLAY YOUR WAY • Quick Match - Find an opponent and compete in fast online matches. • Friends - Challenge your friends and prove who has the best timing. • Practice - Improve your skills by playing against a bot. • Multiple Rounds - Win rounds and take the match. • Rematches - Challenge your opponent again instantly. COMPETE AND PROGRESS • Earn XP after playing matches. • Collect coins and unlock new rewards. • Build your daily streak. • Complete missions. • Climb the leaderboard. • Customize your button and visual effects. SIMPLE TO PLAY, HARD TO MASTER Each round gives you a target time. Once the timer begins, the running time is hidden. Count carefully and press STOP when you think you have reached the target. The player who stops closest to the target wins the round. One button. No visible clock. Pure timing. How close can you get?

Screenshots

Inner Clock Master2 screens
Stop the Timer4 screens

Verdict

The call

The clearest difference is in-app purchases: Inner Clock Master at none against Stop the Timer's 1. Inner Clock Master also leads on ads (none vs shown). On price, update cadence, 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. Stop the Timer sells 1 one-off in-app purchase. Inner Clock Master asks for nothing beyond the download.

UpkeepUpdate frequency

Inner Clock Master ships an update every 4 days, Stop the Timer every 3 days. The most recent releases landed on October 1, 2026 and September 30, 2026 respectively.

Scorecard2 real differences · 4 level
Inner Clock Master versus Stop the Timer: the parameters behind the verdict, then further details
ParameterInner Clock MasterStop the Timer
PriceFreeFree
Update frequencyEvery 4 daysEvery 3 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhoneiPhone
Requires iOS17.016.4 — better
Further details — not scored
Size19 MB57 MB
Age rating4+12+
DeveloperRyoma YanagimotoNoam Sela

In-app purchases

None

Inner Clock Master

No in-app purchases

1 purchases

Stop the Timer

One-time1
  • Remove Ads$2.99

Questions

Is Inner Clock Master free?
Inner Clock Master is free to download, with no in-app purchases.
Is Stop the Timer free?
Stop the Timer is free to download, with in-app purchases available.
Do Inner Clock Master or Stop the Timer have ads?
Stop the Timer shows ads; Inner Clock Master does not.
Which is updated more often, Inner Clock Master or Stop the Timer?
Inner Clock Master ships an update every 4 days, and Stop the Timer every 3 days. Most recently, Inner Clock Master was updated on October 1, 2026 and Stop the Timer on September 30, 2026.

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