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KOAN Plus

Chrome extension by KOAN Plus · Productivity · Education

A Chrome extension in Productivity · Education with 142 users, barely installed.

Specific sites only: 4 match patterns.

What the developer says, and 5 screenshots

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

Users
142
Rating
5.0 (1 ratings)
Users, last 17 days
-2
Rating, last 30 days
Not watched long enough to say
Version
1.6.0
Updated in the store
2026-09-08
Published
2026-06-07
Manifest
V3
Browser access
5 permissions, 4 site patterns

How it has moved

Users
-2 since 31.08
142-149 · 10 readings
2026-09-06: released 1.5.02026-09-08: released 1.6.0
  1. 2026-08-31144
  2. 2026-09-02142
  3. 2026-09-04148
  4. 2026-09-06149released 1.5.0
  5. 2026-09-07147
  6. 2026-09-08145released 1.6.0
  7. 2026-09-10147
  8. 2026-09-13143
  9. 2026-09-15142
  10. 2026-09-16142
Rating
unchanged since 31.08
reviewsrating 5.00 · 10 readings
2026-09-06: released 1.5.02026-09-08: released 1.6.0
  1. 2026-08-31reviews1rating5.00
  2. 2026-09-02reviews1rating5.00
  3. 2026-09-04reviews1rating5.00
  4. 2026-09-06reviews1rating5.00released 1.5.0
  5. 2026-09-07reviews1rating5.00
  6. 2026-09-08reviews1rating5.00released 1.6.0
  7. 2026-09-10reviews1rating5.00
  8. 2026-09-13reviews1rating5.00
  9. 2026-09-15reviews1rating5.00
  10. 2026-09-16reviews1rating5.00
Users
-2 since 31.08
142-149 · 10 readings
2026-09-06: released 1.5.02026-09-08: released 1.6.0
  1. 2026-08-31144
  2. 2026-09-02142
  3. 2026-09-04148
  4. 2026-09-06149released 1.5.0
  5. 2026-09-07147
  6. 2026-09-08145released 1.6.0
  7. 2026-09-10147
  8. 2026-09-13143
  9. 2026-09-15142
  10. 2026-09-16142
Rating
unchanged since 31.08
reviewsrating 5.00 · 10 readings
2026-09-06: released 1.5.02026-09-08: released 1.6.0
  1. 2026-08-31reviews1rating5.00
  2. 2026-09-02reviews1rating5.00
  3. 2026-09-04reviews1rating5.00
  4. 2026-09-06reviews1rating5.00released 1.5.0
  5. 2026-09-07reviews1rating5.00
  6. 2026-09-08reviews1rating5.00released 1.6.0
  7. 2026-09-10reviews1rating5.00
  8. 2026-09-13reviews1rating5.00
  9. 2026-09-15reviews1rating5.00
  10. 2026-09-16reviews1rating5.00

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: 4 match patterns.

  • https://koan.osaka-u.ac.jp/*
  • https://www.cle.osaka-u.ac.jp/*
  • https://ou-idp.auth.osaka-u.ac.jp/*
Show the remaining 1
  • https://auth-mfa.auth.osaka-u.ac.jp/*
  • See the address and title of every tab you have open tabs
  • Manage your downloads downloads
  • Run its own code on the pages it can access scripting
Show the remaining 2
  • Change how downloads are shown downloads.ui
  • Store data in your browser storage

The full permission history for this extension

Version history

  1. Version 1.6.0
  2. Version 1.5.0

What changed recently

  1. Store description rewritten (66 → 57 characters)
  2. Released version 1.6.0 (was 1.5.0)
  3. Now requires Chrome 102
Show the remaining 3
  1. Package size changed
  2. Store description rewritten
  3. Released version 1.5.0 (was 1.3.0)

The publisher

KOAN Plus.

Like this one

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

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  2. OUtoLogin - 阪大システム自動化ツール Describes nearly the same job, smaller audience 73 users ★ 5.0
  3. KU-LMS+ (関大WebClass拡張) Describes nearly the same job, smaller audience 10 users
  4. KULAMS Visualizer Describes nearly the same job, smaller audience 5 users
  5. HSU Dotbugi 🔎 Describes nearly the same job, smaller audience 928 users ★ 5.0

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.