Support
Have a question?
Account
Do I need to create an account?
Just sign in with Apple, Google or your email address, nothing else. Your library is backed up from the first book.
I got a new phone
Sign in with the same account (Apple, Google or email): your library comes back.
Delete my account
Settings › My account › Delete my account, or the dedicated page on this site. Delete my account
Subscription
How much does Aldus cost?
Aldus is free, with every feature.
Scanning and adding
What about my books without a barcode?
Search for them by title, or add them by hand: a title and an author are enough.
I already use another app.
Export your list as CSV, then import it from Settings › Import a list. Aldus finds the editions by their ISBN.
A book was recognized wrong
On its page, tap Edit. Your corrections always take priority over the sources.
Shelving
How do I shelve my books?
In the Rooms tab, open the shelf you are putting your books on and tap “Shelve here”. Scan them one after another: each one takes that shelf as its address. Rooms, bookcases, shelves and boxes are named your way.
Data
Can I get my data back?
Yes, at any time: Settings › Export my library, as CSV, with places and loans.
Where do the book details come from?
From bibliographic sources: the BnF, Open Library, Google Books and ISBNdb. Each book page says which ones filled it in. The details are on the Sources and licenses page. Sources and licenses