The free book tracking app,
built by a reader

MOBS tracks every book you own, read, and want to read next — your series, your TBR, your reading log — and shelves it all in 20+ beautiful themes. Completely free, with no paywalls.

Download on theApp Store

🍎 Completely free — no paywalls. On the App Store, in your browser, Android in beta.

What is a book tracking app?

Every book you own, read, and want to read — in one place

A book tracking app is a place to keep track of your books: the ones you own, the ones you've read, and the ones you want to read next. Instead of a messy spreadsheet, a notes app, or trying to remember it all, everything lives in one place you can open from your phone or your browser.

MOBS — My Online Bookshelf — is a free book tracking app that treats your collection like it matters. Scan a barcode or search a title, and your book drops onto a real, beautiful shelf with its cover, author, and details filled in automatically. Then track it however you like: mark it read, add it to your TBR, sort it into its series, and decorate your shelves in the theme that fits your reading mood.

A note from the maker

I built MOBS because I couldn't find it. I went looking for a simple book tracking app to organize my growing collection — and every single one hit me with a paywall before I could really even use it. So I made the app I wanted: one that tracks every book you own, read, and want to read, looks beautiful doing it, and never locks the good stuff behind a subscription.

— Megan, maker of MOBS 💛

What you can track

Everything a book tracking app should do

📖

Track what you've read

Keep a reading log of every book you finish, and watch your reading add up over the year with simple stats.

🔖

Keep a TBR

Line up the books you want to read next so you always know what's coming — no more forgetting that title a friend recommended.

📚

Follow your series

See which books in a series you own and spot the gaps at a glance, so you can finish what you started.

📷

Add books in seconds

Scan a barcode or search by title — covers, authors, and details fill in automatically.

🔍

Hunt what's missing

Keep a wishlist for the books you're chasing, with one-tap buy and pre-order links — even future releases.

🎨

Make it beautiful

Shelve your books like your real bookcase and dress them up in 20+ living themes — not just another boring list.

A book tracking app that doesn't nickel-and-dime you

Most book tracking apps start free, then lock the features you actually want — bigger libraries, stats, custom shelves — behind a monthly subscription. MOBS doesn't. Every core feature is free for everyone, because that's the whole reason it exists. Here's what readers use it for:

Prefer the term "digital bookshelf"? That's us too — MOBS is both a digital bookshelf and a full book tracking app, in one free place.

Good to know

Book tracking app FAQ

What is a book tracking app?
A book tracking app is a place to keep track of the books you own, the books you've read, and the books you want to read next. Instead of a spreadsheet or a notes app, MOBS shows your whole library as real, themed shelves, tracks your series and your TBR, and logs your reading over the year — so nothing gets lost or forgotten.
Is there a free book tracking app with no paywall?
Yes — MOBS. There are no paywalls, ever. It was built by a reader who searched for a book tracking app and hit paywall after paywall, so every core feature is free for everyone: tracking your books, your series, your TBR, your reading log, and all 20+ themes. Free in your browser and free on the App Store, with Android in beta.
Can I track the books I've read and my TBR?
Yes. MOBS keeps a reading log of what you've read, a TBR list of what's coming up next, and simple stats so you can watch your reading add up over the year. Mark a book as read, add it to your TBR, or keep it on the shelf — it's up to you.
Can a book tracking app track series?
Yes. MOBS groups your collection into series so you can see which books you own and spot the gaps you're still missing at a glance — perfect for finishing a series and never buying a duplicate.
How do I add books to the app?
Scan a book's barcode with your phone or search by title, and MOBS fills in the cover, author, and details automatically. Your book appears on your shelf instantly, ready to track, sort into a series, or add to your TBR.
Does the book tracking app work on my phone?
Yes. MOBS works on iPhone (free on the App Store), Android (in beta), and any web browser, and your library stays in sync — so your book tracking is always with you, wherever you are.

Start tracking your books in 30 seconds

No download needed — it runs right in your browser, completely free, with no paywalls. Add it to your home screen and it feels just like an app.

iOS: on the App Store now  ·  Android: in beta  ·  Web: free forever — no paywall