shelff Downloads & Revenueshelff – PDF Book Reader · App Store
Not in any tracked top chart right now.
Updated 9 Nov 2026 · rankings refresh through the day
DeveloperSatoshi Kojima
CategoryBooks
Price6.99 USD
Released
Rating★ 5.0 (1)
Version1.8.4
Age rating4+
First seen by us
25 Sep 2026
25 Sep 2026Installs (est.)100+ worldwide
shelff – PDF Book Reader update history & changes
Last change · 31 events since 3 Apr 2026Full timeline ↓📦Updated to version 1.8.4📈New best rank in the overall chart: #88📈Entered the top 100📦Updated to version 1.8.3✏️New iPad screenshots✏️New screenshots🆕First spotted by AppInsider🆕Released on the App Store
Full timeline · 31 events
- 📦shelff – PDF Book Reader updated to version 1.8.4Library improvements.
- Archive books to keep them in your library but out of the way. Find them under “Archived” in the sidebar.
- Search now has a scope: within the current filter, or the entire library. In folder view, search looks inside the open folder.
- Category and tag views now group collections too.
- Select books inside a collection to edit them in bulk.… more - 📈shelff – PDF Book Reader new best rank in the overall chart: #88Top Paid · All Apps · CO
- 📈shelff – PDF Book Reader entered the top 100Top Paid · All Apps · CO
- 📈shelff – PDF Book Reader charting in a new countryColombia
- 📈shelff – PDF Book Reader entered the top 10Top Paid · Books · JP
- 📈shelff – PDF Book Reader entered the top 100Top Paid · Books · US
- 📈shelff – PDF Book Reader charting in a new countryUnited States
- 📦shelff – PDF Book Reader updated to version 1.8.3• New “Suggest from Cover” (beta) in the properties sheet: reads the text on the cover and proposes a title, author, and publisher. Available on devices with Apple Intelligence.
• Book covers now appear in Spotlight results and in Shortcuts.… more - 📦shelff – PDF Book Reader updated to version 1.8.2・見開き表示で、表紙と最終ページを Apple Books と同じく片側に置くようにしました（iPad の横向き、iPhone Duo を平らに開いた状態とブックポーズ）。
・見開き表示のタップ領域をページごとにし、どちらのページでも中央をタップするとメニューが出るようにしました。 - ✏️shelff – PDF Book Reader: new iPad screenshots· JP
- ✏️shelff – PDF Book Reader: new screenshots5 screenshots (was 5) · JP
- 📦shelff – PDF Book Reader updated to version 1.8.1・iPhone Duo のブックポーズで、表紙を折り目に掛けず片側に表示するようにしました。
- ✏️shelff – PDF Book Reader: new iPad screenshots· JP
- ✏️shelff – PDF Book Reader: new screenshots5 screenshots (was 5) · JP
- 📦shelff – PDF Book Reader: now updating weekly4 updates in 30 days, after a quiet two months
- 📦shelff – PDF Book Reader updated to version 1.8.0iPhone Duo に対応しました。折り目を避けたボタン配置や、狭い画面でのグリッド表示の列数を調整しています。
- ✏️shelff – PDF Book Reader: description updated· CN
- ✏️shelff – PDF Book Reader: new iPad screenshots· CN
- ✏️shelff – PDF Book Reader: new screenshots5 screenshots (was 5) · CN
- ✏️shelff – PDF Book Reader: description updated· JP
- ✏️shelff – PDF Book Reader: new iPad screenshots· JP
- ✏️shelff – PDF Book Reader: new screenshots5 screenshots (was 5) · JP
- 📦shelff – PDF Book Reader updated to version 1.7.4Optimized internal UI implementation to improve system stability.
- 📦shelff – PDF Book Reader updated to version 1.7.3* ソート・フィルタメニューで選択中の項目が正しく表示されない問題（macOS でチェックが出ない、iOS 27 で位置がずれる）を修正しました。
* 日本語化の漏れを修正しました。 - 📈shelff – PDF Book Reader entered the top 10Top Paid · Books · ID
- 📈shelff – PDF Book Reader entered the top 100Top Paid · Books · CN
- 📈shelff – PDF Book Reader charting in a new countryChina
- 📈shelff – PDF Book Reader charting in a new countryIndonesia
- 🆕shelff – PDF Book Reader first spotted by AppInsider#35 in Top Paid · Books · Japan
- 📦shelff – PDF Book Reader version 1.7.2* ⌘F on a hardware keyboard sometimes failed to open search. Find in the reader is now also available from the iPad menu bar (Edit menu).
* The brightness slider in the reader filled in the wrong direction.
* The text selection menu could stay on screen after the display mode changed (for example, on rotation).… more - 🆕shelff – PDF Book Reader released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
5.0 ★
1 ratings
Measured
shelff – PDF Book Reader at a glance
AI summary written from our chart and store data, 2026-09-28. It can be wrong: check the numbers above.
shelff is a privacy-focused PDF reader and library manager for iOS that stores all data, including metadata as JSON files, directly in iCloud Documents to ensure user ownership and portability. The app currently ranks #3 in the Indonesian paid Books category and #134 in Japan's paid Books category, indicating strong regional traction despite its recent April 2026 release.
Similar apps: Documents by Readdle, PDF Expert, KyBook
shelff – PDF Book Reader on the App Store
App details
App ID
6760986626
Publisher
Satoshi Kojima
On the store since
Apr 2026
Under a year
Minimum OS
iOS 17.0+
iPhone XS and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
2
EN JA
Size
9 MB
Also listed in
Books, Productivity
shelff – PDF Book Reader downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
5.0 ★
1 ratings
Measured
Ratings
1
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Written reviews a week
under 1
US App Store
Lifetime rating
5.0★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
58/100
faster than 64% of Books apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
What users say about shelff – PDF Book Reader
From recent reviews.
About shelff – PDF Book Reader
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 works and magazine back issues into collections, with custom ordering
- Sort by title, author, date added, or last read
- Filter by reading status (unread, reading, finished)
- Full-text search across your PDFs
- Switch between grid and list views
■ PDF Reader
- Immersive full-screen reader
- Single page, two-up, and two-up with cover layouts
- Left-to-right (LTR) and right-to-left (RTL) support
- Highlights with optional comments
- Jump from table of contents or annotation list
- In-document text search
- Crop margins per book, with mirrored or separate settings for facing pages and optional cover exclusion
- Brightness adjustment
- Encrypted PDFs supported
■ Metadata Management
- Edit title, author, publisher, publication date, and more
- Auto-extract initial values from PDF metadata
- Automatic reading status transitions (starts reading, finishes at last page)
■ Siri, Shortcuts, and Spotlight
- Open a book, continue reading, or change reading status from Siri and Shortcuts
- Find and open books in your library from Spotlight
■ Data Transparency
- All data stored as files in iCloud Documents
- Metadata and display settings (layout, crop, etc.) in JSON; annotations in the PDF itself
- Annotations are saved as incremental updates, so existing content such as OCR text layers in scanned books stays intact
- Accessible anytime from the Files app
- On your Mac, an AI agent with shelff-mcp can search and organize the metadata JSON in your iCloud
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 works and magazine back issues into collections, with custom ordering
- Sort by title, author, date added, or last read
- Filter by reading status (unread, reading, finished)
- Full-text search across your PDFs
- Switch between grid and list views
■ PDF Reader
- Immersive full-screen reader
- Single page, two-up, and two-up with cover layouts
- Left-to-right (LTR) and right-to-left (RTL) support
- Highlights with optional comments
- Jump from table of contents or annotation list
- In-document text search
- Crop margins per book, with mirrored or separate settings for facing pages and optional cover exclusion
- Brightness adjustment
- Encrypted PDFs supported
■ Metadata Management
- Edit title, author, publisher, publication date, and more
- Auto-extract initial values from PDF metadata
- Automatic reading status transitions (starts reading, finishes at last page)
■ Siri, Shortcuts, and Spotlight
- Open a book, continue reading, or change reading status from Siri and Shortcuts
- Find and open books in your library from Spotlight
■ Data Transparency
- All data stored as files in iCloud Documents
- Metadata and display settings (layout, crop, etc.) in JSON; annotations in the PDF itself
- Annotations are saved as incremental updates, so existing content such as OCR text layers in scanned books stays intact
- Accessible anytime from the Files app
- On your Mac, an AI agent with shelff-mcp can search and organize the metadata JSON in your iCloud
Latest updates
1.8.4
Library improvements.
- Archive books to keep them in your library but out of the way. Find them under “Archived” in the sidebar.
- Search now has a scope: within the current filter, or the entire library. In folder view, search looks inside the open folder.
- Category and tag views now group collections too.
- Select books inside a collection to edit them in bulk.
1.8.3
• New “Suggest from Cover” (beta) in the properties sheet: reads the text on the cover and proposes a title, author, and publisher. Available on devices with Apple Intelligence.
• Book covers now appear in Spotlight results and in Shortcuts.
1.8.2
・見開き表示で、表紙と最終ページを Apple Books と同じく片側に置くようにしました（iPad の横向き、iPhone Duo を平らに開いた状態とブックポーズ）。
・見開き表示のタップ領域をページごとにし、どちらのページでも中央をタップするとメニューが出るようにしました。
Store changes
What shelff – PDF Book Reader changed on its store page: name, icon, screenshots, price, size, languages, requirements.
New iPad screenshots
New screenshots
5 screenshots (was 5)
New iPad screenshots