Focus4

专注计时器 - 提高工作效率

As of June 2026, Focus4 has 1 users in the Productivity category.

extrastu Productivity

Chrome Web Store ↗.crx

Users0%

1

1

Rating0%

—

— reviews

Reviews0%

—

Version

1.0.1

Manifest V3

History

2 snapshots

Tracking since Apr 20, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 20, 2026	1	—	—	1.0.1
May 11, 2026	1	—	—	1.0.1
Now	1	—	—	1.0.1

Permissions & access

Permissions: storagenotificationsalarmstabs
Host access: None declared

Screenshots

Focus4 screenshot 1

Focus4 screenshot 2

About

Focus4，不只是计时器，更是你的效率助手。立即开启专注模式，让每一秒都更有价值！

version to 1.0.1; 
- add tabs permission and content scripts;
- implement embedded timer component with matrix effects

Technical

Version: 1.0.1
Manifest: V3
Size: 778KiB
Min Chrome: 88
Languages: 1
Featured: No

Metadata

ID: hmomopkndlhmeanadeidodhljokbebma
Developer ID: uc1b41cfdf7458112a1b84096666cfd8b
Developer Email: [email protected]
Created: Apr 3, 2025
Last Updated (Store): Apr 5, 2025
Last Scraped: Jun 6, 2026
Website: —
Support URL: —
Privacy Policy: —

Similar extensions

Alternatives to Focus4, ranked by description similarity.

OnTime - Always-On Timer

A premium floating timer and stopwatch that stays visible across all tabs

Hourglass – Countdown Timer Overlay

A lightweight floating countdown timer and stopwatch for any tab. Track time, boost productivity, set custom intervals.

Compact Countdown Timer

A simple and lightweight countdown timer that you can adjust on the fly.

Smart Timer: Floating Countdown & Stopwatch

Focus Timer - Pomodoro

Focus Timer app to help you focus and work efficiently

FocusGuard - Pomodoro Timer & Break Reminder

Stay productive with smart Pomodoro sessions, break reminders, and focus tracking. 8 free sessions/day.

TimeDay - Focus Pomodoro Timer and Countdown

TimeDay is a simple Chrome Extension that helps you stay focused with a visual timer and countdown.

Stopwatch & Countdown Timer in Always-on-Top PiP Window

Data sourced from the Chrome Web Store · last verified Jun 6, 2026.