Shelf
By Leif
Save anything online — books, videos, music, articles. Sync across devices with a free account. Share curated shelves.
Time on the storeUnder a yearA rough range, not an exact date
Store users14As shown on the Chrome Web Store
Chrome Web Store rating5.0 / 51 rating on the Chrome Web Store
Last store update8 Sep 2026Version 2.3.0, 29 days ago
Inside the extension
Product image 1 of 4Reviews
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The maker
This is the only listing we know of from Leif.
- Listings
- 1
- Combined store users
- ≈14
- Store Featured
- 0
Combined users can count the same person more than once. Maker profile
Ext Watch AI
Should you build in this niche?
One research report for Shelf. 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
