# Inner Clock Master — Master Your Inner Clock

> Master Your Inner Clock (iPhone/iPad app by Ryoma Yanagimoto.)

- Source: https://appshunter.io/ios/app/inner-clock-master/id6757979617 (this page in markdown: same URL + `.md`)
- Developer: [Ryoma Yanagimoto](https://appshunter.io/developer/1681944215)
- Category: Games, Entertainment, Action, Family
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 19 MB
- Languages: American English, Japanese
- Released: 2026-01-20
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/inner-clock-master/id6757979617/reviews.md

## What is Inner Clock Master?

"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!


## Version history (last 5 releases)

### 1.3.1 — 2026-03-29

v1.3.1 Update

- Game balance adjustments: short rounds now appear between longer ones for better pacing
- Adjusted maximum target time range for a more comfortable play experience

### 1.3 — 2026-03-27

v1.3 Update

- New timer UI: expanding circle grows from center and matches the outer ring at target time
- Irregular blinking for a more intuitive time-sense challenge
- Added local ranking (top 20 scores saved)
- Minor bug fixes

### 1.2 — 2026-03-23

v1.2 Update

- 10-language support (Japanese, English, Korean, Chinese, Spanish, French, German, Portuguese, Thai)
- Enhanced in-game visuals (ring pulse animation, dynamic background gradient)
- Added shareable score card image
- Added hashtags to share text
- Minor bug fixes

### 1.1 — 2026-03-05

v1.1 Update

- New app icon design
- Redesigned home screen
- Improved splash screen

### 1.0.1 — 2026-01-21

Minor bug fix

## More apps by Ryoma Yanagimoto

- [Daily Goals - 毎日の目標管理](https://appshunter.io/ios/app/daily-goals/id6757656447)
- [タイマーズ - 複数のタイマーを同時に実行](https://appshunter.io/ios/app/id6757922798)
- [Trace Camera - Stop Motion Cam](https://appshunter.io/ios/app/trace-camera-stop-motion-cam/id6758413123)
- [CoPaMemo - Custom Keyboard](https://appshunter.io/ios/app/copamemo-custom-keyboard/id6758835272)
- [Koyomi - Diary with Future](https://appshunter.io/ios/app/koyomi-diary-with-future/id6758949469)

All apps by Ryoma Yanagimoto: https://appshunter.io/developer/1681944215

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-19.*