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CardStack – Credit Card Offers

By SPACE ROBOTS INC

Auto-add credit card offers and see the best card to use on any site while you shop online.

View Chrome Web Store
Time on the storeUnder a yearA rough range, not an exact date
Store users74As shown on the Chrome Web Store
Chrome Web Store rating5.0 / 52 ratings on the Chrome Web Store
Last store update30 Jul 2026Version 1.3.5, 2 months ago

Inside the extension

CardStack – Credit Card Offers developer product preview 1
Product image 1 of 5

Reviews

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Competitors

Closest by name, description, category or topic.

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Permissions & access

Access levelMedium

Can see the address and title of every open tab.

What it’s allowed to do, not what it actually does. Not a safety rating.

Permissions 5

Sensitive1

  • See the address and title of every open tabtabs

Standard4

  • Save its own settingsstorage
  • Work on the tab you click it onactiveTab
  • Run its code on pages it can accessscripting
  • Open in the side panelsidePanel

Members also see when a new version asks for new access.

Website access 7

  • cardstack-production.up.railway.app
  • www.americanexpress.com
  • global.americanexpress.com
  • secure.chase.com
  • ultimaterewardspoints.chase.com
  • myaccounts.capitalone.com
  • www.bilt.com
Extension ID
bbilpcenklnlanphpkoljoamjhbijcmn
Package size
79.79MiB
Manifest
Version 3

The maker

This is the only listing we know of from SPACE ROBOTS INC.

Listings
1
Combined store users
≈74
Store Featured
0

Combined users can count the same person more than once. Maker profile

Ext Watch AI

Should you build in this niche?

See plans

One research report for CardStack – Credit Card Offers. Reports come with Plus, Pro and Max.

  • Takeaway & demandCited takeaway and search volumes
  • Traffic & domainPopularity rank, visits and authority
  • Money & pricingPlans and prices from the maker’s site
  • ReviewsComplaints and praise, quoted
  • Competitors & ranksRank against the closest listings
  • Build opportunityWhat to build and how to position it
  • Every number shows its source and date
  • Ready in a minute or two
  • Report and PDF yours for 30 days
Overview
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