Greyscale Gateway
By JohnKappa
Each tab opens a window to a different grayscale world, with your favorite sites always in focus at the bottom.
Time on the storeAbout 1 to 3 yearsA rough range, not an exact date
Store users45As shown on the Chrome Web Store
Chrome Web Store rating5.0 / 52 ratings on the Chrome Web Store
Last store update20 Dec 2025Version 1.35, 10 months ago
Inside the extension
Product image 1 of 4Reviews
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The maker
JohnKappa has 6 listings on the store. Updates now and then.
- Listings
- 6
- Combined store users
- ≈357
- Store Featured
- 2
- Updated in the last 90 days
- 0 of 6
- DOS-Style175 users · updated 7 months ago
- ClearSlate67 users · updated 5 months ago
- Kanvas41 users · updated 11 months ago
- MonoClock22 users · updated 20 months ago
Combined users can count the same person more than once. See all 6 listings
Ext Watch AI
Should you build in this niche?
One research report for Greyscale Gateway. 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
