apps / 6760986626
shelff – PDF Book Reader
Own your books, no lock-in
Satoshi Kojima · Book · $6.99 · US storefront
- rating
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- ratings
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- updated
- Oct 25, 2026
- released
- Apr 3, 2026
v1.8.3
visible word pool · 10 words
title 24/30 chars · subtitle 26/30 chars
App Store search indexes the title and subtitle together with the hidden 100-character keyword field as one combined pool: any phrase assembled from those words can rank. These are the words of shelff – PDF Book Reader's pool that are public — the keyword field is not exposed by any API.
from the listing
shelff is a bookshelf for the books you own as PDFs — technical books, scanned books, DRM-free ebooks. One-time purchase, no subscription, no account. And no ads. Everything lives in your iCloud Documents. You are never locked into a proprietary database. Metadata is saved as JSON files alongside your PDFs, so even if you stop using the app, your data remains yours. ■ Library - Organize with folders or browse in a flat list - Filter by categories and tags - Group multi-volume…
Where does it rank? Chart position is one signal — most installs come from keyword search. Check where shelff – PDF Book Reader ranks for any keyword, free, with the rank checker.
this page is one tool call
{ "tool": "app", "arguments": { "appId": 6760986626, "countries": [ "US" ], "subtitle": true } }
The app tool returns this listing as stable JSON for any storefront — one of thirteen ASO tools your agent gets over MCP. Get a free key.