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CardStack – Credit Card Offers

Chrome extension by CardStack · Lifestyle · Shopping

  • Established publisher

A Chrome extension in Lifestyle · Shopping with 89 users, barely installed. Audience over the last 30 days: +26.

Specific sites only: 7 match patterns.

What the developer says, and 5 screenshots

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

Users
89
Rating
5.0 (2 ratings)
Users, last 30 days
+26
Rating, last 30 days
Steady over 30 days
Version
1.3.5
Updated in the store
2026-07-30
Published
2026-03-18
Manifest
V3
Browser access
5 permissions, 7 site patterns

How it has moved

Users
+26 since 03.10
63-90 · 16 readings
  1. 2026-10-0474
  2. 2026-10-0877
  3. 2026-10-1178
  4. 2026-10-1380
  5. 2026-10-1679
  6. 2026-10-1980
  7. 2026-10-2079
  8. 2026-10-2381
  9. 2026-10-2484
  10. 2026-10-2585
  11. 2026-10-2686
  12. 2026-10-2889
  13. 2026-10-2990
  14. 2026-10-3089
  15. 2026-11-0188
  16. 2026-11-0289
Rating
unchanged since 03.10
reviewsrating 5.00 · 16 readings
  1. 2026-10-04reviews2rating5.00
  2. 2026-10-08reviews2rating5.00
  3. 2026-10-11reviews2rating5.00
  4. 2026-10-13reviews2rating5.00
  5. 2026-10-16reviews2rating5.00
  6. 2026-10-19reviews2rating5.00
  7. 2026-10-20reviews2rating5.00
  8. 2026-10-23reviews2rating5.00
  9. 2026-10-24reviews2rating5.00
  10. 2026-10-25reviews2rating5.00
  11. 2026-10-26reviews2rating5.00
  12. 2026-10-28reviews2rating5.00
  13. 2026-10-29reviews2rating5.00
  14. 2026-10-30reviews2rating5.00
  15. 2026-11-01reviews2rating5.00
  16. 2026-11-02reviews2rating5.00
Users
+41 since 31.08
46-90 · 30 readings
  1. 2026-08-3148
  2. 2026-09-0249
  3. 2026-09-0650
  4. 2026-09-0748
  5. 2026-09-0847
  6. 2026-09-0947
  7. 2026-09-1346
  8. 2026-09-1551
  9. 2026-09-1757
  10. 2026-09-2059
  11. 2026-09-2155
  12. 2026-09-2562
  13. 2026-09-2661
  14. 2026-09-2863
  15. 2026-10-0474
  16. 2026-10-0877
  17. 2026-10-1178
  18. 2026-10-1380
  19. 2026-10-1679
  20. 2026-10-1980
  21. 2026-10-2079
  22. 2026-10-2381
  23. 2026-10-2484
  24. 2026-10-2585
  25. 2026-10-2686
  26. 2026-10-2889
  27. 2026-10-2990
  28. 2026-10-3089
  29. 2026-11-0188
  30. 2026-11-0289
Rating
unchanged since 31.08
reviewsrating 5.00 · 30 readings
  1. 2026-08-31reviews2rating5.00
  2. 2026-09-02reviews2rating5.00
  3. 2026-09-06reviews2rating5.00
  4. 2026-09-07reviews2rating5.00
  5. 2026-09-08reviews2rating5.00
  6. 2026-09-09reviews2rating5.00
  7. 2026-09-13reviews2rating5.00
  8. 2026-09-15reviews2rating5.00
  9. 2026-09-17reviews2rating5.00
  10. 2026-09-20reviews2rating5.00
  11. 2026-09-21reviews2rating5.00
  12. 2026-09-25reviews2rating5.00
  13. 2026-09-26reviews2rating5.00
  14. 2026-09-28reviews2rating5.00
  15. 2026-10-04reviews2rating5.00
  16. 2026-10-08reviews2rating5.00
  17. 2026-10-11reviews2rating5.00
  18. 2026-10-13reviews2rating5.00
  19. 2026-10-16reviews2rating5.00
  20. 2026-10-19reviews2rating5.00
  21. 2026-10-20reviews2rating5.00
  22. 2026-10-23reviews2rating5.00
  23. 2026-10-24reviews2rating5.00
  24. 2026-10-25reviews2rating5.00
  25. 2026-10-26reviews2rating5.00
  26. 2026-10-28reviews2rating5.00
  27. 2026-10-29reviews2rating5.00
  28. 2026-10-30reviews2rating5.00
  29. 2026-11-01reviews2rating5.00
  30. 2026-11-02reviews2rating5.00

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: 7 match patterns.

  • https://cardstack-production.up.railway.app/*
  • *://www.americanexpress.com/*
  • *://global.americanexpress.com/*
Show the remaining 4
  • *://secure.chase.com/*
  • *://ultimaterewardspoints.chase.com/*
  • *://myaccounts.capitalone.com/*
  • *://www.bilt.com/*
  • See the address and title of every tab you have open tabs
  • Run its own code on the pages it can access scripting
  • Act on the current tab, but only after you click it activeTab
Show the remaining 2

The full permission history for this extension

What changed recently

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

The publisher

CardStack. Listed website: cardstack.money.

Like this one

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

  1. EarnMore Describes nearly the same job, smaller audience 7 users (last published figure) ★ 5.0
  2. Waly - Maximize Credit Card Rewards Describes nearly the same job, smaller audience 94 users ★ 5.0
  3. MaxRewards: Credit Card Rewards, Offers & Benefits Tracker Describes nearly the same job, smaller audience 5k users ★ 4.7
  4. Wunu' - Real-time Credit Card Optimizer Describes nearly the same job, smaller audience 9 users ★ 5.0
  5. Cherry Pick - Maximize Credit Card Rewards Describes nearly the same job, smaller audience 259 users ★ 3.6

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/bbilpcenklnlanphpkoljoamjhbijcmn/badge.svg)](https://extops.dev/extensions/bbilpcenklnlanphpkoljoamjhbijcmn)

HTML

<a href="https://extops.dev/extensions/bbilpcenklnlanphpkoljoamjhbijcmn"><img src="https://extops.dev/extensions/bbilpcenklnlanphpkoljoamjhbijcmn/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 2026-11-02. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built