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Math Clock, by The Math Learning Center

Chrome Web Store listing by Clarity Innovations, Inc.

  • Trader

A Chrome extension with 90 000 users, an established extension.

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

What the developer says, and 5 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
90 000 (the store no longer states an audience; this is the last figure it published)
Rating
not rated yet
Users, last 16 days
+30k
Version
1.0.0
Updated in the store
2019-06-03
Published
2019-06-03
Manifest
V2
Browser access
1 permission

How it has moved

Users
+30k since 01.09
60k-90k · 7 readings
  1. 2026-09-0160k
  2. 2026-09-0260k
  3. 2026-09-0370k
  4. 2026-09-0480k
  5. 2026-09-1080k
  6. 2026-09-1390k
  7. 2026-09-1690k
Users
+30k since 01.09
60k-90k · 7 readings
  1. 2026-09-0160k
  2. 2026-09-0260k
  3. 2026-09-0370k
  4. 2026-09-0480k
  5. 2026-09-1080k
  6. 2026-09-1390k
  7. 2026-09-1690k

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

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

  • Declares webview

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

Clarity Innovations, Inc. publishes 10 listings we track, 1.6M users between them. Listed website: mathlearningcenter.org.

  1. Number Pieces, by The Math Learning Center Clarity Innovations, Inc. · published 2015-07-08 200k users (last published figure) ★ 4.3
  2. Geoboard, by The Math Learning Center Clarity Innovations, Inc. · published 2015-07-08 200k users ★ 4.4
  3. Fractions, by The Math Learning Center Clarity Innovations, Inc. · published 2016-07-18 200k users (last published figure) ★ 3.0
Show 5 more from this publisher
  1. Number Frames, by The Math Learning Center Clarity Innovations, Inc. · published 2015-07-13 200k users ★ 5.0
  2. Pattern Shapes, by The Math Learning Center Clarity Innovations, Inc. · published 2015-07-09 200k users ★ 4.2
  3. Number Line, by The Math Learning Center Clarity Innovations, Inc. · published 2015-09-18 200k users (last published figure) ★ 4.6
  4. Money Pieces, by The Math Learning Center Clarity Innovations, Inc. · published 2016-01-21 100k users
  5. Math Vocab Cards, by The Math Learning Center Clarity Innovations, Inc. · published 2015-07-08 100k users (last published figure) ★ 2.0

Like this one

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

  1. ColorClock Describes nearly the same job, smaller audience 5 users
  2. clocksimulator.com Describes nearly the same job, smaller audience 11 users
  3. HTML5 Analog Clock Describes nearly the same job, smaller audience 1k users ★ 4.2
  4. Classroom Timer Describes nearly the same job, smaller audience 333 users ★ 5.0
  5. Fullscreen Clock Describes nearly the same job, smaller audience 100 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.

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Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.