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Blackjack cheat sheet

Chrome extension by Menno · Productivity · Tools

A Chrome extension in Productivity · Tools with 196 users, barely installed. Audience over the last 30 days: +14.

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

What the developer says, and 1 screenshot

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

Users
196
Rating
not rated yet
Users, last 30 days
+14
Version
0.0.1
Updated in the store
2024-09-09
Published
2024-09-09
Manifest
V3
Browser access
No permissions declared

How it has moved

Users
+14 since 29.09
178-196 · 16 readings
  1. 2026-10-04179
  2. 2026-10-08185
  3. 2026-10-10180
  4. 2026-10-11178
  5. 2026-10-13185
  6. 2026-10-16184
  7. 2026-10-18186
  8. 2026-10-19187
  9. 2026-10-20186
  10. 2026-10-21180
  11. 2026-10-22182
  12. 2026-10-24185
  13. 2026-10-25184
  14. 2026-10-26188
  15. 2026-10-28193
  16. 2026-10-29196
Users
+20 since 01.09
174-196 · 31 readings
  1. 2026-09-01176
  2. 2026-09-02175
  3. 2026-09-05174
  4. 2026-09-06175
  5. 2026-09-07182
  6. 2026-09-08181
  7. 2026-09-10186
  8. 2026-09-13187
  9. 2026-09-15186
  10. 2026-09-17184
  11. 2026-09-21176
  12. 2026-09-22175
  13. 2026-09-25180
  14. 2026-09-26183
  15. 2026-09-28182
  16. 2026-10-04179
  17. 2026-10-08185
  18. 2026-10-10180
  19. 2026-10-11178
  20. 2026-10-13185
  21. 2026-10-16184
  22. 2026-10-18186
  23. 2026-10-19187
  24. 2026-10-20186
  25. 2026-10-21180
  26. 2026-10-22182
  27. 2026-10-24185
  28. 2026-10-25184
  29. 2026-10-26188
  30. 2026-10-28193
  31. 2026-10-29196

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

Menno publishes 4 listings we track, 1k users between them.

  1. Brightness Menno · Make Chrome Yours · Accessibility · published 2024-07-17 1k users ★ 4.4
  2. Chrome Filters Menno · Make Chrome Yours · Accessibility · published 2023-04-03 122 users ★ 4.7
  3. JSON Formatter Menno · Productivity · Developer · published 2023-05-01 73 users

Like this one

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

  1. blackjack-extension Describes nearly the same job, smaller audience 72 users
  2. Blackjack Strategy Assistant Describes nearly the same job, smaller audience 72 users ★ 5.0
  3. EZ 21 - Blackjack Strategy Describes nearly the same job, smaller audience 184 users ★ 5.0
  4. AIPredictor Describes nearly the same job, smaller audience 98 users ★ 3.0
  5. Blackjack Describes nearly the same job, smaller audience 1k users ★ 3.0

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.

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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