Supported Features
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Dark Interface
ISBN Book Scanner & Library
Catalog shelves, track reading
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
New: Shelf Check. Scan a book in the shop without saving it, and see whether you already own it, own another edition, or have read the author before.
Scan the books you own, build your personal library in seconds, and never accidentally buy the same book twice.
A friend of mine keeps a shelf of books behind her sofa, most of them titles I had never come across. Last summer I went through the whole shelf with my phone, scanning one spine after another until every book was saved to my library. That is the app in one sentence: the fastest way I have found to get books into a list I actually keep.
Point the camera at the barcode on the back of a book and the app reads the ISBN, then looks it up in Open Library, Google Books, Apple Books and more at the same time. The title, author and cover usually appear within a second or two, even for older or obscure titles.
SHELF CHECK
In a bookshop, holding a book you think you might already own, turn on Shelf Check and scan it without adding anything to your library. The app tells you whether that exact ISBN is saved, and whether the same title and author sit on a shelf in another edition. It also shows your history with the author: books you own, books read, and the average rating you gave them. Save it with one tap if you want it, or leave the screen and the library is untouched. The edition warning shows up on ordinary scans too, so a duplicate does not slip in unnoticed.
YOUR LIBRARY
Every book you scan lands in your library. Mark each one as Read, Currently Reading, or Want to Read, and sort them onto shelves you make yourself. I keep one shelf for the books I lend out and would like to see again.
BATCH SCANNING
When you have a whole shelf to get through, turn on batch mode and scan without stopping between books. The app keeps a running count and lets you look over everything once you are done. This is the mode I reach for when cataloguing a bookcase or a stack from the library.
RATE & REMEMBER
When you finish a book, give it a rating from one to five stars and write down what you thought while it is still fresh. I use the notes for the small things I would otherwise forget: who recommended it, who I want to lend it to, the line I underlined. Ratings and notes stay private, and they come along when you export.
YOUR READING YEAR
Set a goal for the year and watch the ring fill as you finish each book. A dedicated tab turns your library into a picture of the year: books read, your average rating, the author you come back to most, whether you are keeping pace, and a chart of every month. I set mine in January and check it more often than I should admit. Setting a goal is free. The full set of insights comes with Premium.
EXPORT
Your library does not have to stay in the app. Export the whole collection to Goodreads, The StoryGraph, LibraryThing, or a plain CSV file, or share a single book's citation as plain text, BibTeX or Markdown. The citation formats are there for students, researchers, and anyone who keeps a reference list.
BUY WHERE YOU LIKE
Open any scanned book in Apple Books, Amazon or Bookshop.org and buy it there. That link, from a book in your hand to the edition you want, is the reason I first built the app, back when I mostly wanted the ebook of whatever I found in a shop. Amazon links cover stores in 20 countries, and Premium lets you set the one you shop with.
GO PREMIUM
The first 10 books and your first shelf are free, with every book source available. So are reading goals and Shelf Check. Premium removes the limits, unlocks batch scanning, ratings and notes, the full reading insights, removes ads, and lets you set the Amazon store you prefer.
• Shelf Check spots duplicates and other editions without saving
• Batch scan whole shelves, then add reading status, ratings, and private notes
• Set a reading goal and follow your year month by month
• Export your library or open a book in the store you prefer
• Go Premium for unlimited books and shelves, full insights, and no ads
- Shelf Check is new. Turn it on in the scanner and scan a book without saving it: the app tells you if that ISBN is already in your library, if the same title sits there in another edition, and how you have rated the author before.
- You get the same warning on ordinary scans, so a duplicate does not sneak into the library.
- Fixed a bug where Premium had to be restored every time the app started. The purchase is checked against the App Store at launch, so it survives a reinstall or a new phone.
The developer, Runar Ovesen Hjerpbakk, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Usage Data
The developer indicated that this app supports the following accessibility features. Learn More
Information
- Seller
- Runar Ovesen Hjerpbakk
- Size
- 12.7 MB
- Category
- Books
- Compatibility
Requires iOS 26.2 or later.
- iPhone
Requires iOS 26.2 or later. - Mac
Requires macOS 26.2 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.2 or later.
- iPhone
- Languages
- English and Norwegian Bokmål
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Premium $2.99
- Copyright
- © 2014 - 2026 Runar Ovesen Hjerpbakk