Is there a BookBuddy alternative for Android?

Yes: What I Already Own works on Android as well as on iPhone, and on a computer in the browser. BookBuddy and MusicBuddy are only available on iPhone, iPad and Mac, and their publisher has no plans for other platforms.

How much do BookBuddy and MusicBuddy cost?

Each is free for up to 50 items; after that, the Pro version costs $9.99 as a one-time purchase on the US App Store, for each app. BookBuddy online sharing is extra, from $1.99 a month. What I Already Own costs €3.95 a month or €39.95 a year, books and records included.

Can I use BookBuddy on a Windows computer?

Not directly: BookBuddy installs on iPhone, iPad and Apple silicon Macs. To view your library elsewhere, Kimico lets you export it as a file or share it online. What I Already Own opens in any browser.

Can I bring over my BookBuddy or MusicBuddy library?

Yes, by file: export it as CSV from the app, then drop the file into What I Already Own (Settings, Import a collection). What I Already Own reads any spreadsheet with a title and an ISBN or barcode; anything it can’t find is listed separately.

Does BookBuddy tell me what my library is worth?

Its app description mentions no market value. What I Already Own does not show one today either; you can record the price you paid.

What I Already Own

What I Already Own vs BookBuddy and MusicBuddy: which app for your books and records?

BookBuddy (books) and MusicBuddy (records) are two apps from the publisher Kimico, for iPhone, iPad and Mac, with a Pro version you buy once. What I Already Own brings books and records together in a single app, on iPhone, Android and computer, by subscription. Here is what sets them apart, fact by fact.

Facts current as of September 29, 2026, taken from the publishers’ official pages, numbered and dated at the bottom of the page.

Try it free

Scanning is free. At your first add: 7-day trial at €0, card required, then €3.95 a month or €39.95 a year, cancel anytime. Your collection stays exportable.

In short

Choose BookBuddy or MusicBuddy if you only use Apple devices, if you would rather pay once ($9.99 per app) and keep your library on your device. Choose What I Already Own if you have an Android phone or want your collection on any computer, if you keep books and records together, and if the exact edition and what your series are missing matter to you.

Side by side

What I Already Own, BookBuddy and MusicBuddy, criterion by criterion
Criterion	What I Already Own	BookBuddy / MusicBuddy
Price	What I Already Own€3.95 a month or €39.95 a year, tax included, after a 7-day trial. Books and records in the same subscription.	BookBuddy / MusicBuddyPro version as a one-time purchase: $9.99 for BookBuddy, $9.99 for MusicBuddy, on the US App Store. BookBuddy online sharing by subscription, from $1.99 a month or $19.99 a year.^{1 2}
Free plan	What I Already OwnNo. Without a subscription, your collection stays viewable and exportable.	BookBuddy / MusicBuddyYes: every feature, up to 50 items per app.³
Platforms	What I Already OwnAn app that installs on iPhone and Android from the browser, without the App Store or Google Play. On a computer, in the browser.	BookBuddy / MusicBuddyiPhone, iPad and Apple silicon Mac, iOS 26 or later. No Android or web version, and the publisher has no plans for one.^{1 2 3}
Barcode scanning	What I Already OwnWith the camera, inside the app; when one barcode covers several editions, you pick yours. No barcode? Search by title.	BookBuddy / MusicBuddyWith the camera or a Bluetooth barcode scanner; ISBN or UPC/EAN entry; online keyword search.^{1 2}
What you can catalog	What I Already OwnBooks and records (vinyl, CDs, cassettes), in a single collection.	BookBuddy / MusicBuddyOne app per category: BookBuddy for books, MusicBuddy for music, MovieBuddy for movies.³
Market value	What I Already OwnNo market value shown at this time. You can record the price paid and the selling price.	BookBuddy / MusicBuddyNo market value mentioned in the app descriptions.^{1 2}
Offline	What I Already OwnThe app knows without a signal whether you already own a book or a record; scans made offline are processed once you’re back online.	BookBuddy / MusicBuddyThe library is stored on the device; iCloud or Dropbox syncs it across your devices.^{1 2}
Export and import	What I Already OwnCSV file, plus an inventory you can print or save as a PDF. Imports exports from Discogs, CLZ and Libib, and any spreadsheet with a title and an ISBN or barcode.	BookBuddy / MusicBuddyCSV, PDF or HTML export; CSV file import.^{1 2}
Lending	What I Already OwnNo lending management.	BookBuddy / MusicBuddyTracks books lent, borrowed and previously owned; BookBuddy also manages a classroom library.^{1 2}
Languages	What I Already OwnEnglish, French, German, Italian, Spanish and Japanese.	BookBuddy / MusicBuddyTen languages, including French, German, Italian, Spanish and Japanese.¹

What BookBuddy / MusicBuddy does better

A one-time purchase. $9.99 once for the Pro version, valid on iPhone and iPad, with no subscription.^{1 3}
Everything on the device. The library is stored on your phone and stays viewable without a signal.^{1 2}
Lending. BookBuddy tracks books lent and borrowed, and manages a classroom library with student checkouts.¹
A handheld scanner. You can scan with a Bluetooth barcode scanner, which is handy for a large library.^{1 2}

How What I Already Own is different

On Android and on any computer. The same app on iPhone and Android, installed from the browser, and your collection in any browser.
Books and records together. One app and one subscription, where Kimico sells one app per category.
The exact edition. When one barcode covers several editions, you pick yours; for a record, the pressing, country and label.
What you’re missing. For every series, author or discography you’ve started, the app lists what you don’t have yet.
Bring your collection over. Imports files from Discogs, CLZ and Libib, and any spreadsheet with a title and an ISBN or barcode.

Try it free

Scanning is free. At your first add: 7-day trial at €0, card required, then €3.95 a month or €39.95 a year, cancel anytime. Your collection stays exportable.

Frequently asked questions

Is there a BookBuddy alternative for Android?: Yes: What I Already Own works on Android as well as on iPhone, and on a computer in the browser. BookBuddy and MusicBuddy are only available on iPhone, iPad and Mac, and their publisher has no plans for other platforms.
How much do BookBuddy and MusicBuddy cost?: Each is free for up to 50 items; after that, the Pro version costs $9.99 as a one-time purchase on the US App Store, for each app. BookBuddy online sharing is extra, from $1.99 a month. What I Already Own costs €3.95 a month or €39.95 a year, books and records included.
Can I use BookBuddy on a Windows computer?: Not directly: BookBuddy installs on iPhone, iPad and Apple silicon Macs. To view your library elsewhere, Kimico lets you export it as a file or share it online. What I Already Own opens in any browser.
Can I bring over my BookBuddy or MusicBuddy library?: Yes, by file: export it as CSV from the app, then drop the file into What I Already Own (Settings, Import a collection). What I Already Own reads any spreadsheet with a title and an ISBN or barcode; anything it can’t find is listed separately.
Does BookBuddy tell me what my library is worth?: Its app description mentions no market value. What I Already Own does not show one today either; you can record the price you paid.

The catalog, no account needed

The lists What I Already Own keeps up to date for you: discographies, bibliographies and reading orders.

Sources

The publishers’ official pages, with the date we checked each one. Prices and plans change: confirm them with the publisher before you subscribe.

1BookBuddy, App Storehttps://apps.apple.com/us/app/bookbuddy-book-tracker/id395150347Checked on September 29, 2026.
2MusicBuddy, App Storehttps://apps.apple.com/us/app/musicbuddy-vinyl-cd-tracker/id1039388028Checked on September 29, 2026.
3Kimico, supporthttps://www.kimicoapps.com/support.htmlChecked on September 29, 2026.

This page is published by What I Already Own, one of the apps compared. We review it every three months. Spotted an error or a fact that has changed? Write to us at [email protected].