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Wonders in Math Land

Chrome Web Store listing by spinnerbox

  • Established publisher

A Chrome extension with 60 users, barely installed. Audience over the last 30 days: +5.

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

What the developer says, and 4 screenshots

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

Users
60
Rating
3.7 (3 ratings)
Users, last 30 days
+5
Rating, last 30 days
Steady over 30 days
Version
1.7.5
Updated in the store
2014-03-31
Published
2013-11-20
Manifest
V2
Browser access
No permissions declared

How it has moved

Users
+5 since 07.10
54-60 · 17 readings
  1. 2026-10-0857
  2. 2026-10-0956
  3. 2026-10-1055
  4. 2026-10-1354
  5. 2026-10-1656
  6. 2026-10-1955
  7. 2026-10-2056
  8. 2026-10-2159
  9. 2026-10-2357
  10. 2026-10-2458
  11. 2026-10-2559
  12. 2026-10-2860
  13. 2026-10-2957
  14. 2026-10-3056
  15. 2026-11-0159
  16. 2026-11-0260
  17. 2026-11-0660
Rating
unchanged since 07.10
reviewsrating 3.67 · 17 readings
  1. 2026-10-08reviews3rating3.67
  2. 2026-10-09reviews3rating3.67
  3. 2026-10-10reviews3rating3.67
  4. 2026-10-13reviews3rating3.67
  5. 2026-10-16reviews3rating3.67
  6. 2026-10-19reviews3rating3.67
  7. 2026-10-20reviews3rating3.67
  8. 2026-10-21reviews3rating3.67
  9. 2026-10-23reviews3rating3.67
  10. 2026-10-24reviews3rating3.67
  11. 2026-10-25reviews3rating3.67
  12. 2026-10-28reviews3rating3.67
  13. 2026-10-29reviews3rating3.67
  14. 2026-10-30reviews3rating3.67
  15. 2026-11-01reviews3rating3.67
  16. 2026-11-02reviews3rating3.67
  17. 2026-11-06reviews3rating3.67
Users
+3 since 01.09
54-62 · 30 readings
  1. 2026-09-0157
  2. 2026-09-0359
  3. 2026-09-0561
  4. 2026-09-0757
  5. 2026-09-0959
  6. 2026-09-1361
  7. 2026-09-1760
  8. 2026-09-2062
  9. 2026-09-2160
  10. 2026-09-2559
  11. 2026-09-2661
  12. 2026-09-2859
  13. 2026-10-0455
  14. 2026-10-0857
  15. 2026-10-0956
  16. 2026-10-1055
  17. 2026-10-1354
  18. 2026-10-1656
  19. 2026-10-1955
  20. 2026-10-2056
  21. 2026-10-2159
  22. 2026-10-2357
  23. 2026-10-2458
  24. 2026-10-2559
  25. 2026-10-2860
  26. 2026-10-2957
  27. 2026-10-3056
  28. 2026-11-0159
  29. 2026-11-0260
  30. 2026-11-0660
Rating
unchanged since 01.09
reviewsrating 3.67 · 30 readings
  1. 2026-09-01reviews3rating3.67
  2. 2026-09-03reviews3rating3.67
  3. 2026-09-05reviews3rating3.67
  4. 2026-09-07reviews3rating3.67
  5. 2026-09-09reviews3rating3.67
  6. 2026-09-13reviews3rating3.67
  7. 2026-09-17reviews3rating3.67
  8. 2026-09-20reviews3rating3.67
  9. 2026-09-21reviews3rating3.67
  10. 2026-09-25reviews3rating3.67
  11. 2026-09-26reviews3rating3.67
  12. 2026-09-28reviews3rating3.67
  13. 2026-10-04reviews3rating3.67
  14. 2026-10-08reviews3rating3.67
  15. 2026-10-09reviews3rating3.67
  16. 2026-10-10reviews3rating3.67
  17. 2026-10-13reviews3rating3.67
  18. 2026-10-16reviews3rating3.67
  19. 2026-10-19reviews3rating3.67
  20. 2026-10-20reviews3rating3.67
  21. 2026-10-21reviews3rating3.67
  22. 2026-10-23reviews3rating3.67
  23. 2026-10-24reviews3rating3.67
  24. 2026-10-25reviews3rating3.67
  25. 2026-10-28reviews3rating3.67
  26. 2026-10-29reviews3rating3.67
  27. 2026-10-30reviews3rating3.67
  28. 2026-11-01reviews3rating3.67
  29. 2026-11-02reviews3rating3.67
  30. 2026-11-06reviews3rating3.67

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

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

We have not read this listing's manifest since we started keeping permission names. The counts above come from the last time we did.

The full permission history for this extension

What changed recently

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

The publisher

spinnerbox publishes 3 listings we track, 1k users between them. Listed website: spinnerbox.blogspot.com.

  1. Conquering Europe - Cities spinnerbox · published 2013-11-26 743 users ★ 1.7
  2. Conquering Europe spinnerbox · published 2013-11-22 395 users ★ 2.4

Like this one

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

  1. Animory Describes nearly the same job, smaller audience 99 users ★ 4.4
  2. Memory Game With Drive Describes nearly the same job, smaller audience 68 users ★ 2.7
  3. MemoRy Games (Engine v4) Describes nearly the same job, smaller audience 75 users
  4. Play Halloween Memory Online Describes nearly the same job, smaller audience 16 users
  5. Memory Match Game Describes nearly the same job, smaller audience 10 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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The badge shows the audience and rating from our last pass over the store and links back to this page.

Users and rating on Ext Ops Panel

Markdown

[![Users and rating on Ext Ops Panel](https://extops.dev/extensions/bfjffnginaejlenpjofdadfdlnnkdldf/badge.svg)](https://extops.dev/extensions/bfjffnginaejlenpjofdadfdlnnkdldf)

HTML

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Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-11-02. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built