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Chrome extension by Clapper Tech LLC · Productivity · Tools

A Chrome extension in Productivity · Tools with 5 users, barely installed.

Specific sites only: 3 match patterns.

What the developer says, and 1 screenshot

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

Users
5
Rating
not rated yet
Users, last 16 days
+5
Version
1.1
Updated in the store
2026-02-12
Published
2026-02-12
Manifest
V3
Browser access
2 permissions, 3 site patterns

How it has moved

Users
+5 since 31.08
0-5 · 6 readings
  1. 2026-08-310
  2. 2026-09-024
  3. 2026-09-054
  4. 2026-09-083
  5. 2026-09-100
  6. 2026-09-155
Users
+5 since 31.08
0-5 · 6 readings
  1. 2026-08-310
  2. 2026-09-024
  3. 2026-09-054
  4. 2026-09-083
  5. 2026-09-100
  6. 2026-09-155

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

Specific sites only: 3 match patterns.

  • https://*.macmillanlearning.com/*
  • https://*.hayden-mcneil.com/*
  • https://*.cloud.macmillan.com/*
  • Run its own code on the pages it can access scripting
  • Act on the current tab, but only after you click it activeTab

The full permission history for this extension

What changed recently

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

The publisher

Clapper Tech LLC publishes 3 listings we track, 11k users between them.

  1. Java Assist Clapper Tech LLC · Productivity · Developer · published 2023-09-04 10k users ★ 5.0
  2. Python Assist Clapper Tech LLC · Productivity · Developer · published 2023-09-21 1k users ★ 5.0

Like this one

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

  1. Librera Book Reader - read all books you love Describes nearly the same job, smaller audience 78 users
  2. VitalSource PDF Downloader Describes nearly the same job, smaller audience 508 users ★ 3.0
  3. Papeer.tech Describes nearly the same job, smaller audience 68 users
  4. Easy ePub Reader Describes nearly the same job, smaller audience 14 users
  5. Polyreader Describes nearly the same job, smaller audience 11 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.

Is this your extension?

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

See what the panel does

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.