Supported Features
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Dark Interface
c-Lock : Lock Timer & Focus
One-Tap Lock & Stay Focused
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
◆◇ Just like your usual timer, lock your phone in a tap ◇◆
c-Lock is a phone-locking and task-management app that's easy to use
precisely because it looks and feels just like the built-in Timer.
■ Features
◇ Familiar timer-style design ◇
Plenty of apps can block other apps, but c-Lock is the first in the world to do it with the look and feel of the built-in Timer.
Since the interface is one you already know, anyone can pick it up instantly.
◇ Scheduling ◇
Lock your phone during specific time periods (e.g., "23:00–7:00") and block apps for that window.
◇ Task management ◇
Manage all your daily tasks together in c-Lock.
・Lock Timer: Set a phone lock as a task.
・Groups: Bundle your growing list of tasks into groups and view them by group.
・Repeating tasks: Set up daily habits (e.g., exercise, studying) all at once.
◇ Support for building a phone-locking habit ◇
Set a weekly lock-time goal (e.g., "4 hours 30 minutes") to stay motivated to lock your phone every day.
・This week's goal: See your lock time, completed task count, and more at a glance.
・Heatmap: Visualize your daily records through color intensity.
・Graphs: View your lock time in daily, weekly, monthly, and yearly graphs.
Look back on your history and turn it into motivation for what's ahead!
◇ Lockdown Mode & Ultimate Mode ◇
Keep your lock timer from being interrupted, sharpen your focus every day, and get the support you need to reach your goals.
・Lockdown Mode: Prevents the lock timer from being interrupted.
・Ultimate Mode: Lockdown Mode, plus protection against canceling the timer by deleting the app.
・Passcode Lock: Makes switching modes difficult by requiring a passcode.
◇ Check without opening the app ◇
With widgets and Live Activities, you can check all kinds of things without ever opening c-Lock.
Widgets: Check your weekly goals, heatmap, and pending tasks without opening the app.
Live Activity: See the timer's remaining time from your Apple Watch or Mac.
■ Perfect for
・Anyone who wants a simple way to lock their phone
・Anyone struggling with the urge to constantly pick up their phone
・Anyone who appreciates beautifully designed apps
Privacy Policy: https://clock-app.com/privacy
Terms of Use: https://clock-app.com/terms
Take control of your daily phone use with c-Lock and make every day more fulfilling!
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
What's new in this update:
- Added widgets for weekly goals and a heatmap
- Updated parts of the onboarding flow
- Bug fixes
The developer, Tomoki Uda, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
The developer indicated that this app supports the following accessibility features. Learn More
Information
- Seller
- Tomoki Uda
- Size
- 24.5 MB
- Category
- Productivity
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Focus 買い切りプラン (割引価格) $44.99
- Focus年間プラン (割引価格) $19.99
- Focus月間プラン (割引価格) $1.99
- Copyright
- © 2026 Tomoki Uda