Countdown Clock

What it can reach

No site access is declared in the manifest, so it cannot read the pages you open on its own.

• Schedule work to run later alarms
• Show you notifications notifications
• Run work in a hidden page offscreen

The full permission history for this extension →

The publisher

Mars and Moon publishes 4 listings we track, 29 users between them.

1. Screen Recorder - Select Area & Audio Mars and Moon · Productivity · Tools · published 2026-06-18 21 users
2. BYOK Pro Chat Mars and Moon · Productivity · Tools · published 2026-08-18 3 users
3. Dark Mode Mars and Moon · Productivity · Tools · published 2026-07-22 2 users (last published figure)

Like this one

Listings the catalog judges closest in what they say they do.

1. Countdown Timer Describes nearly the same job, smaller audience 2k users ★ 4.6
2. Simple Countdown Timer Describes nearly the same job, smaller audience 18 users
3. 99s Timer Describes nearly the same job, smaller audience 2 users (last published figure)
4. Local Timer Describes nearly the same job, smaller audience 2 users (last published figure)
5. Count-Down Timer Describes nearly the same job, smaller audience 4 users

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.