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Chemistry Flash Cards

Chrome Web Store listing by chemninja.com

  • Established publisher

A Chrome extension with 253 users, barely installed. Audience over the last 30 days: -18.

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
253
Rating
3.4 (5 ratings)
Users, last 30 days
-18
Rating, last 30 days
Steady over 30 days
Version
1.0.2
Updated in the store
2014-02-28
Published
2013-12-26
Manifest
V2
Browser access
No permissions declared

How it has moved

Users
-18 since 01.10
229-271 · 16 readings
  1. 2026-10-05267
  2. 2026-10-08262
  3. 2026-10-09260
  4. 2026-10-10260
  5. 2026-10-13266
  6. 2026-10-16251
  7. 2026-10-18231
  8. 2026-10-19229
  9. 2026-10-21238
  10. 2026-10-22242
  11. 2026-10-23241
  12. 2026-10-24241
  13. 2026-10-25248
  14. 2026-10-27258
  15. 2026-10-29253
  16. 2026-10-31253
Rating
unchanged since 01.10
reviewsrating 3.40 · 16 readings
  1. 2026-10-05reviews5rating3.40
  2. 2026-10-08reviews5rating3.40
  3. 2026-10-09reviews5rating3.40
  4. 2026-10-10reviews5rating3.40
  5. 2026-10-13reviews5rating3.40
  6. 2026-10-16reviews5rating3.40
  7. 2026-10-18reviews5rating3.40
  8. 2026-10-19reviews5rating3.40
  9. 2026-10-21reviews5rating3.40
  10. 2026-10-22reviews5rating3.40
  11. 2026-10-23reviews5rating3.40
  12. 2026-10-24reviews5rating3.40
  13. 2026-10-25reviews5rating3.40
  14. 2026-10-27reviews5rating3.40
  15. 2026-10-29reviews5rating3.40
  16. 2026-10-31reviews5rating3.40
Users
-21 since 01.09
229-274 · 30 readings
  1. 2026-09-01274
  2. 2026-09-02270
  3. 2026-09-06273
  4. 2026-09-07267
  5. 2026-09-08259
  6. 2026-09-10260
  7. 2026-09-13257
  8. 2026-09-15261
  9. 2026-09-17271
  10. 2026-09-20266
  11. 2026-09-21268
  12. 2026-09-25270
  13. 2026-09-27267
  14. 2026-09-28271
  15. 2026-10-05267
  16. 2026-10-08262
  17. 2026-10-09260
  18. 2026-10-10260
  19. 2026-10-13266
  20. 2026-10-16251
  21. 2026-10-18231
  22. 2026-10-19229
  23. 2026-10-21238
  24. 2026-10-22242
  25. 2026-10-23241
  26. 2026-10-24241
  27. 2026-10-25248
  28. 2026-10-27258
  29. 2026-10-29253
  30. 2026-10-31253
Rating
unchanged since 01.09
reviewsrating 3.40 · 30 readings
  1. 2026-09-01reviews5rating3.40
  2. 2026-09-02reviews5rating3.40
  3. 2026-09-06reviews5rating3.40
  4. 2026-09-07reviews5rating3.40
  5. 2026-09-08reviews5rating3.40
  6. 2026-09-10reviews5rating3.40
  7. 2026-09-13reviews5rating3.40
  8. 2026-09-15reviews5rating3.40
  9. 2026-09-17reviews5rating3.40
  10. 2026-09-20reviews5rating3.40
  11. 2026-09-21reviews5rating3.40
  12. 2026-09-25reviews5rating3.40
  13. 2026-09-27reviews5rating3.40
  14. 2026-09-28reviews5rating3.40
  15. 2026-10-05reviews5rating3.40
  16. 2026-10-08reviews5rating3.40
  17. 2026-10-09reviews5rating3.40
  18. 2026-10-10reviews5rating3.40
  19. 2026-10-13reviews5rating3.40
  20. 2026-10-16reviews5rating3.40
  21. 2026-10-18reviews5rating3.40
  22. 2026-10-19reviews5rating3.40
  23. 2026-10-21reviews5rating3.40
  24. 2026-10-22reviews5rating3.40
  25. 2026-10-23reviews5rating3.40
  26. 2026-10-24reviews5rating3.40
  27. 2026-10-25reviews5rating3.40
  28. 2026-10-27reviews5rating3.40
  29. 2026-10-29reviews5rating3.40
  30. 2026-10-31reviews5rating3.40

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

chemninja.com publishes 4 listings we track, 10k users between them. Listed website: chemninja.com.

  1. Periodic Table-Chemistry Tools chemninja.com · published 2013-08-11 8k users ★ 3.6
  2. Chemistry Quiz chemninja.com · published 2014-01-21 1k users ★ 1.8
  3. Unit Converter - Chemistry Tools chemninja.com · published 2013-12-24 425 users ★ 2.8

Like this one

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

  1. Chemistry Quiz Describes nearly the same job, smaller audience 1k users ★ 1.8
  2. Advanced Periodic Table Describes nearly the same job, smaller audience 2k users ★ 4.5
  3. Periodic Table Describes nearly the same job, smaller audience 188 users ★ 5.0
  4. Periodic Table Describes nearly the same job, smaller audience 134 users ★ 5.0
  5. Mini Chemical Elements Describes nearly the same job, smaller audience 2 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

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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 2026-10-29. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built