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Japanese System

Chrome extension by sheru.jp · Productivity · Education

  • Established publisher

A Chrome extension in Productivity · Education with 35 users, barely installed. Audience over the last 30 days: -6.

Specific sites only: 1 match pattern.

What the developer says, and 5 screenshots

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

Users
35
Rating
5.0 (2 ratings)
Users, last 30 days
-6
Rating, last 30 days
Steady over 30 days
Version
2.0.1
Updated in the store
2026-10-12
Published
2026-05-15
Manifest
V3
Browser access
5 permissions, 1 site pattern

How it has moved

Users
-6 since 06.10
27-41 · 18 readings
2026-10-08: released 1.1.02026-10-12: released 2.0.1
  1. 2026-10-0827released 1.1.0
  2. 2026-10-0930
  3. 2026-10-1030
  4. 2026-10-1328
  5. 2026-10-1629
  6. 2026-10-1728
  7. 2026-10-1830
  8. 2026-10-1928
  9. 2026-10-2030
  10. 2026-10-2131
  11. 2026-10-2230
  12. 2026-10-2432
  13. 2026-10-2533
  14. 2026-10-2832
  15. 2026-10-2931
  16. 2026-11-0132
  17. 2026-11-0335
  18. 2026-11-0535
Rating
unchanged since 06.10
reviewsrating 5.00 · 18 readings
2026-10-08: released 1.1.02026-10-12: released 2.0.1
  1. 2026-10-08reviews2rating5.00released 1.1.0
  2. 2026-10-09reviews2rating5.00
  3. 2026-10-10reviews2rating5.00
  4. 2026-10-13reviews2rating5.00
  5. 2026-10-16reviews2rating5.00
  6. 2026-10-17reviews2rating5.00
  7. 2026-10-18reviews2rating5.00
  8. 2026-10-19reviews2rating5.00
  9. 2026-10-20reviews2rating5.00
  10. 2026-10-21reviews2rating5.00
  11. 2026-10-22reviews2rating5.00
  12. 2026-10-24reviews2rating5.00
  13. 2026-10-25reviews2rating5.00
  14. 2026-10-28reviews2rating5.00
  15. 2026-10-29reviews2rating5.00
  16. 2026-11-01reviews2rating5.00
  17. 2026-11-03reviews2rating5.00
  18. 2026-11-05reviews2rating5.00
Users
+16 since 31.08
19-41 · 32 readings
2026-09-04: released 1.0.02026-09-05: released 1.0.12026-10-08: released 1.1.02026-10-12: released 2.0.1
  1. 2026-08-3119
  2. 2026-09-0221
  3. 2026-09-0423released 1.0.0
  4. 2026-09-0622
  5. 2026-09-0724
  6. 2026-09-0826
  7. 2026-09-1525
  8. 2026-09-1624
  9. 2026-09-2027
  10. 2026-09-2223
  11. 2026-09-2527
  12. 2026-09-2628
  13. 2026-09-2827
  14. 2026-10-0441
  15. 2026-10-0827released 1.1.0
  16. 2026-10-0930
  17. 2026-10-1030
  18. 2026-10-1328
  19. 2026-10-1629
  20. 2026-10-1728
  21. 2026-10-1830
  22. 2026-10-1928
  23. 2026-10-2030
  24. 2026-10-2131
  25. 2026-10-2230
  26. 2026-10-2432
  27. 2026-10-2533
  28. 2026-10-2832
  29. 2026-10-2931
  30. 2026-11-0132
  31. 2026-11-0335
  32. 2026-11-0535
Rating
unchanged since 31.08
reviewsrating 5.00 · 32 readings
2026-09-04: released 1.0.02026-09-05: released 1.0.12026-10-08: released 1.1.02026-10-12: released 2.0.1
  1. 2026-08-31reviews2rating5.00
  2. 2026-09-02reviews2rating5.00
  3. 2026-09-04reviews2rating5.00released 1.0.0
  4. 2026-09-06reviews2rating5.00
  5. 2026-09-07reviews2rating5.00
  6. 2026-09-08reviews2rating5.00
  7. 2026-09-15reviews2rating5.00
  8. 2026-09-16reviews2rating5.00
  9. 2026-09-20reviews2rating5.00
  10. 2026-09-22reviews2rating5.00
  11. 2026-09-25reviews2rating5.00
  12. 2026-09-26reviews2rating5.00
  13. 2026-09-28reviews2rating5.00
  14. 2026-10-04reviews2rating5.00
  15. 2026-10-08reviews2rating5.00released 1.1.0
  16. 2026-10-09reviews2rating5.00
  17. 2026-10-10reviews2rating5.00
  18. 2026-10-13reviews2rating5.00
  19. 2026-10-16reviews2rating5.00
  20. 2026-10-17reviews2rating5.00
  21. 2026-10-18reviews2rating5.00
  22. 2026-10-19reviews2rating5.00
  23. 2026-10-20reviews2rating5.00
  24. 2026-10-21reviews2rating5.00
  25. 2026-10-22reviews2rating5.00
  26. 2026-10-24reviews2rating5.00
  27. 2026-10-25reviews2rating5.00
  28. 2026-10-28reviews2rating5.00
  29. 2026-10-29reviews2rating5.00
  30. 2026-11-01reviews2rating5.00
  31. 2026-11-03reviews2rating5.00
  32. 2026-11-05reviews2rating5.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times 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: 1 match pattern.

  • https://obsmjjiwpcouabzcckvj.supabase.co/*
  • See the address and title of every tab you have open tabs
  • Schedule work to run later alarms
  • Tell whether you are away from the computer idle
Show the remaining 2

The full permission history for this extension

Version history

  1. Version 2.0.1
  2. Version 1.1.0
  3. Version 1.0.1
Show the remaining 1
  1. Version 1.0.0 · Asked for fewer permissions (6, was 7)

What changed recently

  1. Package size changed
  2. Store description rewritten
  3. Released version 2.0.1 (was 1.1.0)
Show the remaining 8
  1. Package size changed
  2. Released version 1.1.0 (was 1.0.1)
  3. Store description rewritten
  4. Released version 1.0.1 (was 1.0.0)
  5. Package size changed
  6. Asked for fewer permissions (6, was 7)
  7. Supported languages changed (1 → 2)
  8. Released version 1.0.0 (was 0.1.12)

The publisher

sheru.jp. Listed website: japanesesystem.com.

Like this one

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

  1. jp343 Track Your Japanese Immersion Describes nearly the same job, smaller audience 114 users ★ 5.0
  2. Osmolog - Language Immersion Tracker Describes nearly the same job, smaller audience 43 users ★ 5.0
  3. Mikan 見間 - Japanese Immersion Tracker Describes nearly the same job, smaller audience 1k users ★ 5.0
  4. Language Learning Time Tracker Describes nearly the same job, smaller audience 18 users
  5. Japanese Reading Tracker Describes nearly the same job, smaller audience 3 users (last published figure)

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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Users and rating on Ext Ops Panel

Markdown

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HTML

<a href="https://extops.dev/extensions/ilbekloifdcdahlcffhlgohoggmmakih"><img src="https://extops.dev/extensions/ilbekloifdcdahlcffhlgohoggmmakih/badge.svg" alt="Users and rating on Ext Ops Panel" height="20"></a>

Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-11-03. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built